Late Cretaceous Volcanic Rocks and Stratigraphic Delimitation in the Nanyandang Mountain Area, Southeastern Zhejiang

doi:10.19657/j.geoscience.1000-8527.2024.036

Abstract

Abstract:

This study focuses on the Baiyunshan volcanic edifice in the Nanyandang Mountain area, southeastern Zhejiang. Zircon U-Pb dating was conducted on volcanic rocks and syenite porphyry from the central intrusion of the edifice, yielding 8 sets of high-precision data. Four volcanic rock samples and one syenite porphyry sample yielded ages ranging from 90.32 to 98.37 Ma, confirming intense volcanic activity in the region during the Late Cretaceous.Geochemical analysis of 6 Late Cretaceous volcanic clastic rock samples reveals the following characteristics: major elements are characterized by high silica, high alkali, low aluminum, depletion in Ca, Fe, Mg, P, and Ti, and high differentiation. Trace and rare earth elements show enrichment in large ion lithophile elements (Rb, K, Th, U), depletion in Ba, Nb, Sr, P, and Ti, and low contents of siderophile elements (Co, Ni, Cr). These features indicate that the volcanic rocks belong to quasi-aluminous to peraluminous high-K calc-alkaline series, with high degrees of fractional crystallization and crustal origin.The genesis of the Late Cretaceous volcanic rocks is attributed to the subduction of the Pacific Plate, which sustained upper crustal compression and extensional tectonics in southeastern Zhejiang from the Late Jurassic to the Late Cretaceous, triggering volcanic activity in the Nanyandang Mountain area.Recent discoveries of Late Cretaceous volcanic rocks in southeastern Zhejiang, with expanding outcrops, show lithological and geochemical differences from the Xiaoxiong Formation. To better “accommodate” these volcanic strata, it is proposed to establish a new “Yandang Mountain Group” and subdivide it into “Formation-Member” units based on lithological assemblages and geochemical characteristics.

Key words: Late Cretaceous, volcanic rock, U-Pb dating, geological significance, Nanyandang Mountain area, southeastern Zhejiang

CLC Number:

P588.1

PAN Shaojun, CHEN Xiaoyou, ZHANG Jianfang, ZENG Fanfei, GU Mingguang, MA Junxiang. Late Cretaceous Volcanic Rocks and Stratigraphic Delimitation in the Nanyandang Mountain Area, Southeastern Zhejiang[J]. Geoscience, 2025, 39(04): 964-980.

Figures/Tables 10

References 52

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测点编号	Th/U		同位素比值						年龄(Ma)
测点编号	Th/U		²⁰⁷Pb/²³⁵U±σ		²⁰⁶Pb/²³⁸U±σ		²⁰⁸Pb/²³²Th±σ		²⁰⁷Pb/²³⁵U±σ		²⁰⁶Pb/²³⁸U±σ		²⁰⁸Pb/²³²Th±σ
①样品QD047,流纹岩;采样坐标:120°07'49″E,27°29'12″N;16个点加权平均年龄98.37±0.88 Ma
QD047-01	0.87		0.11618±0.00558		0.01584±0.00035		0.00564±0.00041		111.6±5.07		101.3±2.22		113.8±8.23
QD047-02	0.73		0.10229±0.00395		0.01529±0.00028		0.0047±0.00028		98.9±3.64		97.8±1.76		94.7±5.65
QD047-03	0.91		0.0982±0.00394		0.0152±0.00028		0.00484±0.00027		95.1±3.64		97.3±1.81		97.6±5.42
QD047-04	0.99		0.1057±0.00463		0.01525±0.00029		0.00472±0.00025		102±4.25		97.6±1.86		95.2±5.13
QD047-05	0.85		0.11131±0.00402		0.01518±0.00022		0.00554±0.00030		107.2±3.67		97.1±1.41		111.7±6.07
QD047-06	0.74		0.09806±0.00323		0.01537±0.00025		0.00493±0.00028		95±2.98		98.3±1.58		99.4±5.73
QD047-07	0.80		0.10683±0.00489		0.01579±0.00039		0.00554±0.00038		103.1±4.49		101±2.49		111.6±7.72
QD047-08	0.90		0.10074±0.00345		0.01533±0.00029		0.00508±0.00022		97.5±3.18		98.1±1.83		102.4±4.34
QD047-09	0.76		0.11046±0.00337		0.01527±0.00027		0.00494±0.00022		106.4±3.09		97.7±1.71		99.6±4.50
QD047-10	1.08		0.10062±0.00358		0.01548±0.00029		0.00475±0.00019		97.3±3.31		99±1.86		95.9±3.85
QD047-11	1.04		0.10187±0.00317		0.01547±0.00028		0.00497±0.00023		98.5±2.92		99±1.79		100.3±4.59
QD047-12	1.02		0.10391±0.00414		0.01537±0.00028		0.00469±0.00020		100.4±3.81		98.3±1.78		94.5±4.04
QD047-13	0.95		0.10055±0.00369		0.01555±0.00032		0.00504±0.00021		97.3±3.41		99.4±2.02		101.6±4.17
QD047-14	1.06		0.10612±0.00315		0.0152±0.00027		0.00485±0.00020		102.4±2.89		97.3±1.69		97.8±4.02
QD047-15	0.83		0.10073±0.00329		0.01546±0.00023		0.00519±0.00026		97.4±3.03		98.9±1.44		104.7±5.20
QD047-16	0.76		0.11088±0.00787		0.01555±0.00038		0.00505±0.00044		106.8±7.19		99.5±2.39		101.9±8.93
②样品QD086,流纹质角砾熔结凝灰岩;采样坐标:120°10'41″E,27°34'14″N;10个点加权平均年龄90.32±0.95 Ma
QD086-01	0.85		0.10192±0.00212		0.01428±0.00010		0.00473±0.00006		98.5±1.95		91.4±0.64		95.4±1.17
QD086-02	0.55		0.09413±0.00265		0.01429±0.00012		0.00441±0.00008		91.3±2.46		91.5±0.76		89±1.59
QD086-03	0.74		0.13398±0.00612		0.0143±0.00016		0.00504±0.00011		127.7±5.48		91.5±1.04		101.7±2.28
QD086-04	0.90		0.11219±0.00222		0.0143±0.00009		0.00483±0.00007		108±2.03		91.6±0.59		97.3±1.33
QD086-05	0.93		0.12286±0.00249		0.01431±0.00009		0.0051±0.00007		117.7±2.26		91.6±0.58		102.8±1.34
QD086-06	0.90		0.10337±0.00229		0.01438±0.00013		0.00476±0.00007		99.9±2.11		92±0.83		96±1.49
QD086-07	0.96		0.15694±0.00658		0.01446±0.00015		0.00576±0.00014		148±5.78		92.5±0.92		116±2.82
QD086-08	0.57		0.11388±0.00335		0.01446±0.00009		0.0052±0.00011		109.5±3.05		92.6±0.60		104.8±2.13
QD086-09	0.82		0.17573±0.00850		0.01453±0.00018		0.00673±0.00018		164.4±7.34		93±1.12		135.6±3.66
QD086-10	0.71		0.20156±0.00665		0.01457±0.00014		0.00712±0.00017		186.4±5.62		93.3±0.89		143.4±3.33
③样品D1548,流纹质角砾晶屑熔结凝岩;采样坐标:120°08'39″E,27°31'33″N;19个点加权平均年龄93.3±1.0 Ma
D1548-01		0.52		0.09728±0.00707		0.01503±0.00032		0.00476±0.00023		94.3±6.54		96.2±2.02		96±4.58
D1548-02		0.53		0.10199±0.00493		0.01485±0.00019		0.0049±0.00012		98.6±4.55		95±1.24		98.9±2.45
D1548-03		0.6		0.10334±0.00495		0.01456±0.00020		0.00484±0.00015		99.9±4.55		93.2±1.25		97.6±2.98
D1548-04		0.59		0.09337±0.00559		0.01464±0.00022		0.00485±0.00017		90.6±5.19		93.7±1.39		97.9±3.44
D1548-05		0.62		0.09947±0.00968		0.01398±0.00028		0.00442±0.00023		96.3±8.94		89.5±1.75		89.2±4.60
D1548-06		0.56		0.10235±0.00599		0.01429±0.00023		0.00435±0.00017		98.9±5.52		91.5±1.44		87.7±3.34
D1548-07		0.65		0.09993±0.00701		0.01392±0.00026		0.0047±0.00020		96.7±6.47		89.1±1.66		94.7±4.04
D1548-08		1.25		0.09263±0.00688		0.01462±0.00025		0.00456±0.00012		90±6.39		93.6±1.60		92±2.47
D1548-09		0.66		0.10247±0.00509		0.01467±0.00021		0.00481±0.00015		99±4.69		93.9±1.31		96.9±3.11
D1548-10		0.68		0.09897±0.00345		0.01487±0.00017		0.00484±0.00010		95.8±3.19		95.2±1.08		97.6±2.06
D1548-11		0.58		0.08559±0.00643		0.0139±0.00033		0.0044±0.00021		83.4±6.01		89±2.07		88.7±4.17
D1548-12		0.58		0.09985±0.00605		0.01447±0.00019		0.00472±0.00013		96.6±5.59		92.6±1.22		95.1±2.66
D1548-13		0.63		0.09537±0.00438		0.01484±0.00018		0.00472±0.00013		92.5±4.06		94.9±1.17		95.1±2.58
D1548-14		0.67		0.10075±0.00758		0.01403±0.00032		0.00479±0.00019		97.5±6.99		89.8±2.03		96.6±3.91
D1548-15		0.48		0.1058±0.00922		0.01494±0.00038		0.00511±0.00033		102.1±8.47		95.6±2.40		103.1±6.56
D1548-16		0.52		0.09688±0.00814		0.015±0.00017		0.00446±0.00020		93.9±7.53		96±1.10		90±4.06
D1548-17		0.57		0.09886±0.00645		0.01415±0.00025		0.0048±0.00019		95.7±5.96		90.5±1.56		96.7±3.82
D1548-18		0.61		0.10639±0.00691		0.01453±0.00022		0.00461±0.00016		102.7±6.34		93±1.39		92.9±3.19
D1548-19		0.61		0.09325±0.00473		0.0144±0.00021		0.00452±0.00014		90.5±4.40		92.1±1.30		91.1±2.85
④样品PM16TW10,流纹质晶玻屑熔结凝灰岩;采样坐标:120°09'08″E,27°34'47″N;19个点加权平均年龄94.8±1.0Ma
PM16-10-01		1.15		0.09904±0.00705		0.01479±0.00026		0.00482±0.00016		95.9±6.51		94.6±1.65		97.1±3.25
PM16-10-02		1.19		0.10192±0.00729		0.01412±0.00027		0.0047±0.00016		98.5±6.72		90.4±1.72		94.9±3.22
PM16-10-03		1.85		0.10124±0.00642		0.01472±0.00026		0.00464±0.00013		97.9±5.92		94.2±1.68		93.6±2.54
PM16-10-04		1.19		0.09752±0.00714		0.01469±0.00028		0.00498±0.00017		94.5±6.61		94±1.80		100.4±3.34
PM16-10-05		1.18		0.10901±0.00892		0.01505±0.00031		0.00464±0.00021		105.1±8.17		96.3±2.00		93.5±4.29
PM16-10-06		1.51		0.1091±0.00758		0.01508±0.00030		0.00491±0.00016		105.1±6.94		96.5±1.93		99±3.30
PM16-10-07		2.91		0.10339±0.00643		0.01483±0.00023		0.00465±0.00011		99.9±5.92		94.9±1.49		93.8±2.20
PM16-10-08		1.16		0.10929±0.00775		0.01537±0.00031		0.00478±0.00017		105.3±7.10		98.3±1.94		96.3±3.42
PM16-10-09		1.40		0.10814±0.00682		0.01531±0.00035		0.00524±0.00016		104.3±6.25		98±2.19		105.7±3.20
PM16-10-10		1.14		0.10692±0.00759		0.01498±0.00034		0.00465±0.00016		103.1±6.97		95.9±2.14		93.8±3.26
PM16-10-11		2.40		0.09755±0.00725		0.01474±0.00024		0.00486±0.00012		94.5±6.70		94.4±1.54		98±2.34
PM16-10-12		1.31		0.10514±0.00796		0.01442±0.00034		0.00502±0.00019		101.5±7.31		92.3±2.17		101.2±3.82
PM16-10-13		2.68		0.10284±0.00702		0.01498±0.00027		0.00461±0.00011		99.4±6.47		95.8±1.72		93±2.30
PM16-10-14		0.85		0.08625±0.00933		0.0144±0.00042		0.00459±0.00023		84±8.72		92.2±2.68		92.5±4.53
PM16-10-15		1.24		0.09792±0.00816		0.01488±0.00031		0.00452±0.00019		94.9±7.54		95.2±1.99		91.1±3.79
PM16-10-16		1.93		0.0975±0.00620		0.01437±0.00023		0.00473±0.00012		94.5±5.74		92±1.47		95.4±2.39
PM16-10-17		1.24		0.09168±0.00666		0.01484±0.00031		0.00461±0.00015		89.1±6.20		94.9±1.97		93±3.02
PM16-10-18		1.49		0.109±0.00979		0.01542±0.00040		0.00485±0.00018		105±8.97		98.6±2.53		97.8±3.66
PM16-10-19		1.23		0.10335±0.00844		0.01524±0.00030		0.00469±0.00019		99.9±7.77		97.5±1.89		94.5±3.78
⑤样品D1045,正长斑岩;采样坐标:120°09'42″E,27°32'49″N;23个点加权平均年龄94.0±1.4 Ma
D1045-01	0.73		0.10016±0.01581		0.01382±0.00058		0.00484±0.00039		96.9±14.59		88.5±3.72		97.6±7.86
D1045-02	0.74		0.10391±0.01014		0.01481±0.00044		0.00547±0.00031		100.4±9.33		94.8±2.80		110.2±6.31
D1045-03	0.67		0.09827±0.01072		0.01403±0.00052		0.00456±0.00032		95.2±9.92		89.8±3.30		92±6.35
D1045-04	0.71		0.09919±0.01519		0.01476±0.00048		0.00475±0.00029		96±14.03		94.5±3.08		95.7±5.82
D1045-05	0.77		0.08961±0.01106		0.01503±0.00052		0.00459±0.00031		87.1±10.31		96.2±3.28		92.7±6.28
D1045-06	0.73		0.10578±0.00758		0.01456±0.00027		0.00489±0.00018		102.1±6.96		93.2±1.69		98.6±3.68
D1045-07	1.23		0.10097±0.01255		0.01426±0.00050		0.00525±0.00023		97.7±11.58		91.3±3.17		105.8±4.65
D1045-08	0.74		0.10197±0.01051		0.01426±0.00043		0.0042±0.00025		98.6±9.68		91.3±2.75		84.8±5.00
D1045-09	0.98		0.09361±0.00816		0.01374±0.00036		0.00469±0.00025		90.9±7.58		88±2.27		94.5±4.96
D1045-10	0.83		0.09071±0.00649		0.01441±0.00029		0.00422±0.00016		88.2±6.04		92.2±1.86		85.1±3.16
D1045-11	0.82		0.10602±0.00863		0.01484±0.00033		0.00462±0.00018		102.3±7.92		94.9±2.12		93.2±3.56
D1045-12	0.78		0.09032±0.00941		0.01458±0.00041		0.00454±0.00020		87.8±8.77		93.3±2.63		91.5±4.01
D1045-13	0.78		0.09579±0.01045		0.01436±0.00036		0.00446±0.00023		92.9±9.68		91.9±2.30		90±4.63
D1045-14	0.84		0.10492±0.00868		0.01444±0.00037		0.00497±0.00021		101.3±7.97		92.5±2.32		100.1±4.24
D1045-15	0.74		0.10672±0.00732		0.01554±0.00034		0.00493±0.00021		103±6.72		99.4±2.16		99.5±4.14
D1045-16	0.82		0.11381±0.01290		0.0157±0.00049		0.00469±0.00026		109.4±11.76		100.4±3.09		94.5±5.17
D1045-17	0.69		0.09849±0.00853		0.01563±0.00040		0.00416±0.00022		95.4±7.89		100±2.51		83.9±4.45
D1045-18	0.64		0.09122±0.00660		0.01438±0.00025		0.00423±0.00017		88.6±6.15		92±1.62		85.2±3.34
D1045-19	0.64		0.10141±0.00797		0.01466±0.00028		0.00515±0.00024		98.1±7.35		93.8±1.80		103.9±4.76
D1045-20	0.76		0.09809±0.00846		0.01516±0.00033		0.00465±0.00020		95±7.82		97±2.07		93.9±4.11
D1045-21	0.77		0.11492±0.01016		0.01562±0.00052		0.00497±0.00031		110.5±9.25		99.9±3.30		100.2±6.24
D1045-22	0.80		0.09944±0.01005		0.01528±0.00044		0.00482±0.00024		96.3±9.28		97.8±2.82		97.1±4.91
D1045-23	0.91		0.08616±0.00787		0.01429±0.00051		0.00525±0.00033		83.9±7.35		91.5±3.24		105.9±6.54
⑥样品QD050,流纹岩;采样坐标:120°05'58″E,27°30'17″N;16个点加权平均年龄114.3±1.3 Ma
QD050-01	1.44		0.12284±0.00578		0.01781±0.00042		0.00552±0.00033		117.6±5.23		113.8±2.67		111.3±6.54
QD050-02	1.15		0.12698±0.00750		0.01822±0.00044		0.00538±0.00036		121.4±6.75		116.4±2.79		108.4±7.16
QD050-03	0.66		0.13036±0.00895		0.01833±0.00053		0.00697±0.00073		124.4±8.04		117.1±3.33		140.4±14.72
QD050-04	0.94		0.11331±0.00619		0.01777±0.00059		0.00605±0.00057		109±5.65		113.5±3.76		121.8±11.50
QD050-05	0.88		0.11487±0.00466		0.01782±0.00037		0.00547±0.00034		110.4±4.25		113.9±2.35		110.2±6.86
QD050-06	1.13		0.1234±0.00585		0.01788±0.00043		0.00569±0.00033		118.1±5.28		114.2±2.70		114.7±6.62
QD050-07	0.78		0.12175±0.00423		0.01786±0.00036		0.00585±0.00027		116.7±3.83		114.1±2.27		117.9±5.42
QD050-08	0.99		0.12846±0.00628		0.01786±0.00040		0.00527±0.00026		122.7±5.65		114.1±2.55		106.3±5.25
QD050-09	2.50		0.12228±0.00469		0.01782±0.00035		0.00529±0.00019		117.1±4.24		113.9±2.22		106.6±3.79
QD050-10	1.30		0.12634±0.00659		0.01779±0.00041		0.00594±0.00030		120.8±5.94		113.7±2.61		119.8±6.08
QD050-11	1.12		0.12555±0.00503		0.0178±0.00039		0.00534±0.00027		120.1±4.54		113.7±2.47		107.6±5.34
QD050-12	0.80		0.12482±0.00579		0.01788±0.00040		0.0061±0.00039		119.4±5.23		114.3±2.54		123±7.93
QD050-13	1.05		0.1262±0.00634		0.01769±0.00041		0.0056±0.00045		120.7±5.72		113.1±2.61		112.9±9.08
QD050-14	1.22		0.11813±0.00406		0.01798±0.00032		0.00545±0.00023		113.4±3.69		114.9±2.05		109.9±4.62
QD050-15	1.65		0.11939±0.00680		0.01783±0.00044		0.0057±0.00035		114.5±6.17		113.9±2.76		114.9±7.06
QD050-16	1.12		0.12392±0.00744		0.01798±0.00046		0.00618±0.00042		118.6±6.72		114.9±2.9		124.6±8.34
⑦样品D1313,流纹质晶屑熔结凝岩;采样坐标:120°12'17″E,27°35'30″N;25个点加权平均年龄111.2±1.1Ma
D1313-01	1.20		0.1073±0.00853		0.01744±0.00037		0.0053±0.00019		103.5±7.82		111.5±2.36		106.8±3.86
D1313-02	1.09		0.11677±0.00980		0.01778±0.00035		0.00598±0.00019		112.1±8.91		113.6±2.19		120.5±3.81
D1313-03	1.05		0.11417±0.01536		0.01797±0.00064		0.00555±0.00028		109.8±14.00		114.8±4.04		111.8±5.69
D1313-04	0.78		0.11147±0.00961		0.01699±0.00032		0.00586±0.00029		107.3±8.78		108.6±2.03		118.2±5.74
D1313-05	1.36		0.11502±0.00858		0.01803±0.00034		0.00569±0.00016		110.5±7.81		115.2±2.14		114.8±3.31
D1313-06	0.72		0.11626±0.01407		0.01783±0.00070		0.00592±0.00045		111.7±12.79		113.9±4.42		119.2±8.98
D1313-07	0.82		0.13141±0.00827		0.01782±0.00037		0.00587±0.00023		125.4±7.42		113.9±2.32		118.2±4.61
D1313-08	0.75		0.13345±0.00887		0.01813±0.00042		0.00581±0.00029		127.2±7.95		115.8±2.69		117±5.89
D1313-09	0.75		0.1111±0.01616		0.01765±0.00062		0.00616±0.00052		107±14.77		112.8±3.94		124.1±10.35
D1313-10	1.01		0.11939±0.00998		0.01704±0.00039		0.00518±0.00021		114.5±9.05		108.9±2.46		104.5±4.24
D1313-11	1.22		0.12903±0.00987		0.018±0.00042		0.00546±0.00018		123.2±8.87		115±2.67		110.1±3.60
D1313-12	1.38		0.11474±0.00825		0.01708±0.00032		0.00527±0.00014		110.3±7.51		109.2±2.00		106.2±2.84
D1313-13	1.26		0.11755±0.00854		0.01745±0.00032		0.00569±0.00018		112.9±7.76		111.5±2.06		114.6±3.63
D1313-14	0.90		0.11188±0.00922		0.01735±0.00039		0.00557±0.00023		107.7±8.42		110.9±2.50		112.3±4.70
D1313-15	0.92		0.12675±0.00825		0.01729±0.00034		0.00585±0.00021		121.2±7.44		110.5±2.15		117.9±4.13
D1313-16	0.81		0.11929±0.01081		0.01776±0.00038		0.00606±0.00027		114.4±9.81		113.5±2.39		122.2±5.36
D1313-17	0.75		0.12202±0.00902		0.0171±0.00034		0.00546±0.00019		116.9±8.16		109.3±2.13		110.1±3.84
D1313-18	1.11		0.11567±0.00925		0.01703±0.00041		0.00578±0.00023		111.1±8.42		108.8±2.60		116.4±4.61
D1313-19	1.14		0.12929±0.01308		0.01749±0.00048		0.00559±0.00027		123.5±11.76		111.8±3.06		112.6±5.45
D1313-20	0.89		0.12494±0.01256		0.0174±0.00050		0.00516±0.00028		119.5±11.34		111.2±3.15		104.1±5.57
D1313-21	0.97		0.12006±0.00880		0.01678±0.00050		0.00583±0.00030		115.1±7.98		107.2±3.14		117.5±6.02
D1313-22	1.19		0.11104±0.00676		0.01738±0.00032		0.00521±0.00015		106.9±6.18		111.1±2.04		105±3.04
D1313-23	1.41		0.10786±0.01542		0.01774±0.00070		0.00581±0.00030		104±14.13		113.4±4.42		117.1±5.97
D1313-24	0.67		0.12272±0.00738		0.01666±0.00027		0.00541±0.00020		117.5±6.67		106.5±1.74		109±4.00
D1313-25	0.64		0.11768±0.01070		0.01754±0.00039		0.00614±0.00029		113±9.72		112.1±2.48		123.6±5.79
⑧样品D1372,流纹质含角砾含晶屑玻屑凝灰岩;采样坐标:120°14'19″E,27°35'43″N;11个点加权平均年龄110.6±1.4 Ma
D1372-01	1.13		0.11271±0.01449		0.01788±0.00069		0.00592±0.00036		108.4±13.22		114.2±4.37		119.4±7.13
D1372-02	1.04		0.12211±0.01295		0.01726±0.00053		0.00608±0.00031		117±11.72		110.3±3.37		122.5±6.24
D1372-03	2.36		0.12739±0.00736		0.01748±0.00028		0.00569±0.00013		121.7±6.63		111.7±1.76		114.7±2.68
D1372-04	0.82		0.12554±0.01073		0.01726±0.00033		0.0059±0.00025		120.1±9.68		110.3±2.12		119±4.94
D1372-05	0.66		0.12359±0.00784		0.01721±0.00028		0.00546±0.00017		118.3±7.09		110±1.79		110.1±3.41
D1372-06	0.89		0.1167±0.00792		0.01751±0.00032		0.00568±0.00019		112.1±7.20		111.9±2.04		114.5±3.83
D1372-07	1.41		0.11973±0.01089		0.01699±0.00050		0.005±0.00025		114.8±9.88		108.6±3.19		100.8±5.13
D1372-08	1.14		0.12585±0.00997		0.01738±0.00032		0.00502±0.00016		120.4±8.99		111.1±2.03		101.3±3.13
D1372-09	0.91		0.12624±0.01369		0.0172±0.00052		0.00545±0.00030		120.7±12.34		109.9±3.27		109.8±6.00
D1372-10	1.24		0.11429±0.00645		0.0171±0.00028		0.00544±0.00016		109.9±5.88		109.3±1.77		109.6±3.27
D1372-11	1.30		0.12007±0.01515		0.01718±0.00059		0.00631±0.00031		115.1±13.73		109.8±3.71		127.2±6.32

测点编号	Th/U		同位素比值						年龄(Ma)
测点编号	Th/U		²⁰⁷Pb/²³⁵U±σ		²⁰⁶Pb/²³⁸U±σ		²⁰⁸Pb/²³²Th±σ		²⁰⁷Pb/²³⁵U±σ		²⁰⁶Pb/²³⁸U±σ		²⁰⁸Pb/²³²Th±σ
①样品QD047,流纹岩;采样坐标:120°07'49″E,27°29'12″N;16个点加权平均年龄98.37±0.88 Ma
QD047-01	0.87		0.11618±0.00558		0.01584±0.00035		0.00564±0.00041		111.6±5.07		101.3±2.22		113.8±8.23
QD047-02	0.73		0.10229±0.00395		0.01529±0.00028		0.0047±0.00028		98.9±3.64		97.8±1.76		94.7±5.65
QD047-03	0.91		0.0982±0.00394		0.0152±0.00028		0.00484±0.00027		95.1±3.64		97.3±1.81		97.6±5.42
QD047-04	0.99		0.1057±0.00463		0.01525±0.00029		0.00472±0.00025		102±4.25		97.6±1.86		95.2±5.13
QD047-05	0.85		0.11131±0.00402		0.01518±0.00022		0.00554±0.00030		107.2±3.67		97.1±1.41		111.7±6.07
QD047-06	0.74		0.09806±0.00323		0.01537±0.00025		0.00493±0.00028		95±2.98		98.3±1.58		99.4±5.73
QD047-07	0.80		0.10683±0.00489		0.01579±0.00039		0.00554±0.00038		103.1±4.49		101±2.49		111.6±7.72
QD047-08	0.90		0.10074±0.00345		0.01533±0.00029		0.00508±0.00022		97.5±3.18		98.1±1.83		102.4±4.34
QD047-09	0.76		0.11046±0.00337		0.01527±0.00027		0.00494±0.00022		106.4±3.09		97.7±1.71		99.6±4.50
QD047-10	1.08		0.10062±0.00358		0.01548±0.00029		0.00475±0.00019		97.3±3.31		99±1.86		95.9±3.85
QD047-11	1.04		0.10187±0.00317		0.01547±0.00028		0.00497±0.00023		98.5±2.92		99±1.79		100.3±4.59
QD047-12	1.02		0.10391±0.00414		0.01537±0.00028		0.00469±0.00020		100.4±3.81		98.3±1.78		94.5±4.04
QD047-13	0.95		0.10055±0.00369		0.01555±0.00032		0.00504±0.00021		97.3±3.41		99.4±2.02		101.6±4.17
QD047-14	1.06		0.10612±0.00315		0.0152±0.00027		0.00485±0.00020		102.4±2.89		97.3±1.69		97.8±4.02
QD047-15	0.83		0.10073±0.00329		0.01546±0.00023		0.00519±0.00026		97.4±3.03		98.9±1.44		104.7±5.20
QD047-16	0.76		0.11088±0.00787		0.01555±0.00038		0.00505±0.00044		106.8±7.19		99.5±2.39		101.9±8.93
②样品QD086,流纹质角砾熔结凝灰岩;采样坐标:120°10'41″E,27°34'14″N;10个点加权平均年龄90.32±0.95 Ma
QD086-01	0.85		0.10192±0.00212		0.01428±0.00010		0.00473±0.00006		98.5±1.95		91.4±0.64		95.4±1.17
QD086-02	0.55		0.09413±0.00265		0.01429±0.00012		0.00441±0.00008		91.3±2.46		91.5±0.76		89±1.59
QD086-03	0.74		0.13398±0.00612		0.0143±0.00016		0.00504±0.00011		127.7±5.48		91.5±1.04		101.7±2.28
QD086-04	0.90		0.11219±0.00222		0.0143±0.00009		0.00483±0.00007		108±2.03		91.6±0.59		97.3±1.33
QD086-05	0.93		0.12286±0.00249		0.01431±0.00009		0.0051±0.00007		117.7±2.26		91.6±0.58		102.8±1.34
QD086-06	0.90		0.10337±0.00229		0.01438±0.00013		0.00476±0.00007		99.9±2.11		92±0.83		96±1.49
QD086-07	0.96		0.15694±0.00658		0.01446±0.00015		0.00576±0.00014		148±5.78		92.5±0.92		116±2.82
QD086-08	0.57		0.11388±0.00335		0.01446±0.00009		0.0052±0.00011		109.5±3.05		92.6±0.60		104.8±2.13
QD086-09	0.82		0.17573±0.00850		0.01453±0.00018		0.00673±0.00018		164.4±7.34		93±1.12		135.6±3.66
QD086-10	0.71		0.20156±0.00665		0.01457±0.00014		0.00712±0.00017		186.4±5.62		93.3±0.89		143.4±3.33
③样品D1548,流纹质角砾晶屑熔结凝岩;采样坐标:120°08'39″E,27°31'33″N;19个点加权平均年龄93.3±1.0 Ma
D1548-01		0.52		0.09728±0.00707		0.01503±0.00032		0.00476±0.00023		94.3±6.54		96.2±2.02		96±4.58
D1548-02		0.53		0.10199±0.00493		0.01485±0.00019		0.0049±0.00012		98.6±4.55		95±1.24		98.9±2.45
D1548-03		0.6		0.10334±0.00495		0.01456±0.00020		0.00484±0.00015		99.9±4.55		93.2±1.25		97.6±2.98
D1548-04		0.59		0.09337±0.00559		0.01464±0.00022		0.00485±0.00017		90.6±5.19		93.7±1.39		97.9±3.44
D1548-05		0.62		0.09947±0.00968		0.01398±0.00028		0.00442±0.00023		96.3±8.94		89.5±1.75		89.2±4.60
D1548-06		0.56		0.10235±0.00599		0.01429±0.00023		0.00435±0.00017		98.9±5.52		91.5±1.44		87.7±3.34
D1548-07		0.65		0.09993±0.00701		0.01392±0.00026		0.0047±0.00020		96.7±6.47		89.1±1.66		94.7±4.04
D1548-08		1.25		0.09263±0.00688		0.01462±0.00025		0.00456±0.00012		90±6.39		93.6±1.60		92±2.47
D1548-09		0.66		0.10247±0.00509		0.01467±0.00021		0.00481±0.00015		99±4.69		93.9±1.31		96.9±3.11
D1548-10		0.68		0.09897±0.00345		0.01487±0.00017		0.00484±0.00010		95.8±3.19		95.2±1.08		97.6±2.06
D1548-11		0.58		0.08559±0.00643		0.0139±0.00033		0.0044±0.00021		83.4±6.01		89±2.07		88.7±4.17
D1548-12		0.58		0.09985±0.00605		0.01447±0.00019		0.00472±0.00013		96.6±5.59		92.6±1.22		95.1±2.66
D1548-13		0.63		0.09537±0.00438		0.01484±0.00018		0.00472±0.00013		92.5±4.06		94.9±1.17		95.1±2.58
D1548-14		0.67		0.10075±0.00758		0.01403±0.00032		0.00479±0.00019		97.5±6.99		89.8±2.03		96.6±3.91
D1548-15		0.48		0.1058±0.00922		0.01494±0.00038		0.00511±0.00033		102.1±8.47		95.6±2.40		103.1±6.56
D1548-16		0.52		0.09688±0.00814		0.015±0.00017		0.00446±0.00020		93.9±7.53		96±1.10		90±4.06
D1548-17		0.57		0.09886±0.00645		0.01415±0.00025		0.0048±0.00019		95.7±5.96		90.5±1.56		96.7±3.82
D1548-18		0.61		0.10639±0.00691		0.01453±0.00022		0.00461±0.00016		102.7±6.34		93±1.39		92.9±3.19
D1548-19		0.61		0.09325±0.00473		0.0144±0.00021		0.00452±0.00014		90.5±4.40		92.1±1.30		91.1±2.85
④样品PM16TW10,流纹质晶玻屑熔结凝灰岩;采样坐标:120°09'08″E,27°34'47″N;19个点加权平均年龄94.8±1.0Ma
PM16-10-01		1.15		0.09904±0.00705		0.01479±0.00026		0.00482±0.00016		95.9±6.51		94.6±1.65		97.1±3.25
PM16-10-02		1.19		0.10192±0.00729		0.01412±0.00027		0.0047±0.00016		98.5±6.72		90.4±1.72		94.9±3.22
PM16-10-03		1.85		0.10124±0.00642		0.01472±0.00026		0.00464±0.00013		97.9±5.92		94.2±1.68		93.6±2.54
PM16-10-04		1.19		0.09752±0.00714		0.01469±0.00028		0.00498±0.00017		94.5±6.61		94±1.80		100.4±3.34
PM16-10-05		1.18		0.10901±0.00892		0.01505±0.00031		0.00464±0.00021		105.1±8.17		96.3±2.00		93.5±4.29
PM16-10-06		1.51		0.1091±0.00758		0.01508±0.00030		0.00491±0.00016		105.1±6.94		96.5±1.93		99±3.30
PM16-10-07		2.91		0.10339±0.00643		0.01483±0.00023		0.00465±0.00011		99.9±5.92		94.9±1.49		93.8±2.20
PM16-10-08		1.16		0.10929±0.00775		0.01537±0.00031		0.00478±0.00017		105.3±7.10		98.3±1.94		96.3±3.42
PM16-10-09		1.40		0.10814±0.00682		0.01531±0.00035		0.00524±0.00016		104.3±6.25		98±2.19		105.7±3.20
PM16-10-10		1.14		0.10692±0.00759		0.01498±0.00034		0.00465±0.00016		103.1±6.97		95.9±2.14		93.8±3.26
PM16-10-11		2.40		0.09755±0.00725		0.01474±0.00024		0.00486±0.00012		94.5±6.70		94.4±1.54		98±2.34
PM16-10-12		1.31		0.10514±0.00796		0.01442±0.00034		0.00502±0.00019		101.5±7.31		92.3±2.17		101.2±3.82
PM16-10-13		2.68		0.10284±0.00702		0.01498±0.00027		0.00461±0.00011		99.4±6.47		95.8±1.72		93±2.30
PM16-10-14		0.85		0.08625±0.00933		0.0144±0.00042		0.00459±0.00023		84±8.72		92.2±2.68		92.5±4.53
PM16-10-15		1.24		0.09792±0.00816		0.01488±0.00031		0.00452±0.00019		94.9±7.54		95.2±1.99		91.1±3.79
PM16-10-16		1.93		0.0975±0.00620		0.01437±0.00023		0.00473±0.00012		94.5±5.74		92±1.47		95.4±2.39
PM16-10-17		1.24		0.09168±0.00666		0.01484±0.00031		0.00461±0.00015		89.1±6.20		94.9±1.97		93±3.02
PM16-10-18		1.49		0.109±0.00979		0.01542±0.00040		0.00485±0.00018		105±8.97		98.6±2.53		97.8±3.66
PM16-10-19		1.23		0.10335±0.00844		0.01524±0.00030		0.00469±0.00019		99.9±7.77		97.5±1.89		94.5±3.78
⑤样品D1045,正长斑岩;采样坐标:120°09'42″E,27°32'49″N;23个点加权平均年龄94.0±1.4 Ma
D1045-01	0.73		0.10016±0.01581		0.01382±0.00058		0.00484±0.00039		96.9±14.59		88.5±3.72		97.6±7.86
D1045-02	0.74		0.10391±0.01014		0.01481±0.00044		0.00547±0.00031		100.4±9.33		94.8±2.80		110.2±6.31
D1045-03	0.67		0.09827±0.01072		0.01403±0.00052		0.00456±0.00032		95.2±9.92		89.8±3.30		92±6.35
D1045-04	0.71		0.09919±0.01519		0.01476±0.00048		0.00475±0.00029		96±14.03		94.5±3.08		95.7±5.82
D1045-05	0.77		0.08961±0.01106		0.01503±0.00052		0.00459±0.00031		87.1±10.31		96.2±3.28		92.7±6.28
D1045-06	0.73		0.10578±0.00758		0.01456±0.00027		0.00489±0.00018		102.1±6.96		93.2±1.69		98.6±3.68
D1045-07	1.23		0.10097±0.01255		0.01426±0.00050		0.00525±0.00023		97.7±11.58		91.3±3.17		105.8±4.65
D1045-08	0.74		0.10197±0.01051		0.01426±0.00043		0.0042±0.00025		98.6±9.68		91.3±2.75		84.8±5.00
D1045-09	0.98		0.09361±0.00816		0.01374±0.00036		0.00469±0.00025		90.9±7.58		88±2.27		94.5±4.96
D1045-10	0.83		0.09071±0.00649		0.01441±0.00029		0.00422±0.00016		88.2±6.04		92.2±1.86		85.1±3.16
D1045-11	0.82		0.10602±0.00863		0.01484±0.00033		0.00462±0.00018		102.3±7.92		94.9±2.12		93.2±3.56
D1045-12	0.78		0.09032±0.00941		0.01458±0.00041		0.00454±0.00020		87.8±8.77		93.3±2.63		91.5±4.01
D1045-13	0.78		0.09579±0.01045		0.01436±0.00036		0.00446±0.00023		92.9±9.68		91.9±2.30		90±4.63
D1045-14	0.84		0.10492±0.00868		0.01444±0.00037		0.00497±0.00021		101.3±7.97		92.5±2.32		100.1±4.24
D1045-15	0.74		0.10672±0.00732		0.01554±0.00034		0.00493±0.00021		103±6.72		99.4±2.16		99.5±4.14
D1045-16	0.82		0.11381±0.01290		0.0157±0.00049		0.00469±0.00026		109.4±11.76		100.4±3.09		94.5±5.17
D1045-17	0.69		0.09849±0.00853		0.01563±0.00040		0.00416±0.00022		95.4±7.89		100±2.51		83.9±4.45
D1045-18	0.64		0.09122±0.00660		0.01438±0.00025		0.00423±0.00017		88.6±6.15		92±1.62		85.2±3.34
D1045-19	0.64		0.10141±0.00797		0.01466±0.00028		0.00515±0.00024		98.1±7.35		93.8±1.80		103.9±4.76
D1045-20	0.76		0.09809±0.00846		0.01516±0.00033		0.00465±0.00020		95±7.82		97±2.07		93.9±4.11
D1045-21	0.77		0.11492±0.01016		0.01562±0.00052		0.00497±0.00031		110.5±9.25		99.9±3.30		100.2±6.24
D1045-22	0.80		0.09944±0.01005		0.01528±0.00044		0.00482±0.00024		96.3±9.28		97.8±2.82		97.1±4.91
D1045-23	0.91		0.08616±0.00787		0.01429±0.00051		0.00525±0.00033		83.9±7.35		91.5±3.24		105.9±6.54
⑥样品QD050,流纹岩;采样坐标:120°05'58″E,27°30'17″N;16个点加权平均年龄114.3±1.3 Ma
QD050-01	1.44		0.12284±0.00578		0.01781±0.00042		0.00552±0.00033		117.6±5.23		113.8±2.67		111.3±6.54
QD050-02	1.15		0.12698±0.00750		0.01822±0.00044		0.00538±0.00036		121.4±6.75		116.4±2.79		108.4±7.16
QD050-03	0.66		0.13036±0.00895		0.01833±0.00053		0.00697±0.00073		124.4±8.04		117.1±3.33		140.4±14.72
QD050-04	0.94		0.11331±0.00619		0.01777±0.00059		0.00605±0.00057		109±5.65		113.5±3.76		121.8±11.50
QD050-05	0.88		0.11487±0.00466		0.01782±0.00037		0.00547±0.00034		110.4±4.25		113.9±2.35		110.2±6.86
QD050-06	1.13		0.1234±0.00585		0.01788±0.00043		0.00569±0.00033		118.1±5.28		114.2±2.70		114.7±6.62
QD050-07	0.78		0.12175±0.00423		0.01786±0.00036		0.00585±0.00027		116.7±3.83		114.1±2.27		117.9±5.42
QD050-08	0.99		0.12846±0.00628		0.01786±0.00040		0.00527±0.00026		122.7±5.65		114.1±2.55		106.3±5.25
QD050-09	2.50		0.12228±0.00469		0.01782±0.00035		0.00529±0.00019		117.1±4.24		113.9±2.22		106.6±3.79
QD050-10	1.30		0.12634±0.00659		0.01779±0.00041		0.00594±0.00030		120.8±5.94		113.7±2.61		119.8±6.08
QD050-11	1.12		0.12555±0.00503		0.0178±0.00039		0.00534±0.00027		120.1±4.54		113.7±2.47		107.6±5.34
QD050-12	0.80		0.12482±0.00579		0.01788±0.00040		0.0061±0.00039		119.4±5.23		114.3±2.54		123±7.93
QD050-13	1.05		0.1262±0.00634		0.01769±0.00041		0.0056±0.00045		120.7±5.72		113.1±2.61		112.9±9.08
QD050-14	1.22		0.11813±0.00406		0.01798±0.00032		0.00545±0.00023		113.4±3.69		114.9±2.05		109.9±4.62
QD050-15	1.65		0.11939±0.00680		0.01783±0.00044		0.0057±0.00035		114.5±6.17		113.9±2.76		114.9±7.06
QD050-16	1.12		0.12392±0.00744		0.01798±0.00046		0.00618±0.00042		118.6±6.72		114.9±2.9		124.6±8.34
⑦样品D1313,流纹质晶屑熔结凝岩;采样坐标:120°12'17″E,27°35'30″N;25个点加权平均年龄111.2±1.1Ma
D1313-01	1.20		0.1073±0.00853		0.01744±0.00037		0.0053±0.00019		103.5±7.82		111.5±2.36		106.8±3.86
D1313-02	1.09		0.11677±0.00980		0.01778±0.00035		0.00598±0.00019		112.1±8.91		113.6±2.19		120.5±3.81
D1313-03	1.05		0.11417±0.01536		0.01797±0.00064		0.00555±0.00028		109.8±14.00		114.8±4.04		111.8±5.69
D1313-04	0.78		0.11147±0.00961		0.01699±0.00032		0.00586±0.00029		107.3±8.78		108.6±2.03		118.2±5.74
D1313-05	1.36		0.11502±0.00858		0.01803±0.00034		0.00569±0.00016		110.5±7.81		115.2±2.14		114.8±3.31
D1313-06	0.72		0.11626±0.01407		0.01783±0.00070		0.00592±0.00045		111.7±12.79		113.9±4.42		119.2±8.98
D1313-07	0.82		0.13141±0.00827		0.01782±0.00037		0.00587±0.00023		125.4±7.42		113.9±2.32		118.2±4.61
D1313-08	0.75		0.13345±0.00887		0.01813±0.00042		0.00581±0.00029		127.2±7.95		115.8±2.69		117±5.89
D1313-09	0.75		0.1111±0.01616		0.01765±0.00062		0.00616±0.00052		107±14.77		112.8±3.94		124.1±10.35
D1313-10	1.01		0.11939±0.00998		0.01704±0.00039		0.00518±0.00021		114.5±9.05		108.9±2.46		104.5±4.24
D1313-11	1.22		0.12903±0.00987		0.018±0.00042		0.00546±0.00018		123.2±8.87		115±2.67		110.1±3.60
D1313-12	1.38		0.11474±0.00825		0.01708±0.00032		0.00527±0.00014		110.3±7.51		109.2±2.00		106.2±2.84
D1313-13	1.26		0.11755±0.00854		0.01745±0.00032		0.00569±0.00018		112.9±7.76		111.5±2.06		114.6±3.63
D1313-14	0.90		0.11188±0.00922		0.01735±0.00039		0.00557±0.00023		107.7±8.42		110.9±2.50		112.3±4.70
D1313-15	0.92		0.12675±0.00825		0.01729±0.00034		0.00585±0.00021		121.2±7.44		110.5±2.15		117.9±4.13
D1313-16	0.81		0.11929±0.01081		0.01776±0.00038		0.00606±0.00027		114.4±9.81		113.5±2.39		122.2±5.36
D1313-17	0.75		0.12202±0.00902		0.0171±0.00034		0.00546±0.00019		116.9±8.16		109.3±2.13		110.1±3.84
D1313-18	1.11		0.11567±0.00925		0.01703±0.00041		0.00578±0.00023		111.1±8.42		108.8±2.60		116.4±4.61
D1313-19	1.14		0.12929±0.01308		0.01749±0.00048		0.00559±0.00027		123.5±11.76		111.8±3.06		112.6±5.45
D1313-20	0.89		0.12494±0.01256		0.0174±0.00050		0.00516±0.00028		119.5±11.34		111.2±3.15		104.1±5.57
D1313-21	0.97		0.12006±0.00880		0.01678±0.00050		0.00583±0.00030		115.1±7.98		107.2±3.14		117.5±6.02
D1313-22	1.19		0.11104±0.00676		0.01738±0.00032		0.00521±0.00015		106.9±6.18		111.1±2.04		105±3.04
D1313-23	1.41		0.10786±0.01542		0.01774±0.00070		0.00581±0.00030		104±14.13		113.4±4.42		117.1±5.97
D1313-24	0.67		0.12272±0.00738		0.01666±0.00027		0.00541±0.00020		117.5±6.67		106.5±1.74		109±4.00
D1313-25	0.64		0.11768±0.01070		0.01754±0.00039		0.00614±0.00029		113±9.72		112.1±2.48		123.6±5.79
⑧样品D1372,流纹质含角砾含晶屑玻屑凝灰岩;采样坐标:120°14'19″E,27°35'43″N;11个点加权平均年龄110.6±1.4 Ma
D1372-01	1.13		0.11271±0.01449		0.01788±0.00069		0.00592±0.00036		108.4±13.22		114.2±4.37		119.4±7.13
D1372-02	1.04		0.12211±0.01295		0.01726±0.00053		0.00608±0.00031		117±11.72		110.3±3.37		122.5±6.24
D1372-03	2.36		0.12739±0.00736		0.01748±0.00028		0.00569±0.00013		121.7±6.63		111.7±1.76		114.7±2.68
D1372-04	0.82		0.12554±0.01073		0.01726±0.00033		0.0059±0.00025		120.1±9.68		110.3±2.12		119±4.94
D1372-05	0.66		0.12359±0.00784		0.01721±0.00028		0.00546±0.00017		118.3±7.09		110±1.79		110.1±3.41
D1372-06	0.89		0.1167±0.00792		0.01751±0.00032		0.00568±0.00019		112.1±7.20		111.9±2.04		114.5±3.83
D1372-07	1.41		0.11973±0.01089		0.01699±0.00050		0.005±0.00025		114.8±9.88		108.6±3.19		100.8±5.13
D1372-08	1.14		0.12585±0.00997		0.01738±0.00032		0.00502±0.00016		120.4±8.99		111.1±2.03		101.3±3.13
D1372-09	0.91		0.12624±0.01369		0.0172±0.00052		0.00545±0.00030		120.7±12.34		109.9±3.27		109.8±6.00
D1372-10	1.24		0.11429±0.00645		0.0171±0.00028		0.00544±0.00016		109.9±5.88		109.3±1.77		109.6±3.27
D1372-11	1.30		0.12007±0.01515		0.01718±0.00059		0.00631±0.00031		115.1±13.73		109.8±3.71		127.2±6.32

样品编号	SiO₂	TiO₂	Al₂O₃	TFe₂O₃	FeO	MnO	MgO	CaO	Na₂O	K₂O
QD047	75.59	0.132	12.50	1.85	0.08	0.048	0.065	0.50	3.66	5.05
QD086	77.27	0.096	11.51	1.61	0.38	0.028	0.067	0.40	3.45	5.17
D1548	77.68	0.120	11.57	1.76	0.21	0.044	0.046	0.13	3.32	4.39
PM16-10	74.91	0.260	12.86	1.59	<0.10	0.081	0.140	0.59	4.52	3.97
PM17-7	77.13	0.150	11.50	1.76	0.14	0.018	0.059	0.17	3.56	4.49
PM17-10	77.64	0.140	11.30	1.83	0.46	0.052	0.059	0.41	3.55	4.65
样品编号	P₂O₅	烧失	ALK	K/Na	AKI	A/NK	A/CNK	τ	σ	D.I
QD047	0.014	0.48	8.71	1.38	0.92	1.09	1.01	122.42	2.32	95.01
QD086	0.013	0.33	8.62	1.50	0.98	1.02	0.96	155.83	2.17	96.35
D1548	0.012	0.41	7.71	1.32	0.88	1.13	1.11	124.08	1.71	95.81
PM16-10	0.037	0.53	8.49	0.88	0.91	1.10	1.01	66.85	2.25	94.67
PM17-7	0.015	0.47	8.06	1.26	0.70	1.07	1.05	51.65	1.90	96.38
PM17-10	0.012	0.42	8.20	1.31	0.73	1.04	0.97	56.91	1.94	95.67

样品编号	SiO₂	TiO₂	Al₂O₃	TFe₂O₃	FeO	MnO	MgO	CaO	Na₂O	K₂O
QD047	75.59	0.132	12.50	1.85	0.08	0.048	0.065	0.50	3.66	5.05
QD086	77.27	0.096	11.51	1.61	0.38	0.028	0.067	0.40	3.45	5.17
D1548	77.68	0.120	11.57	1.76	0.21	0.044	0.046	0.13	3.32	4.39
PM16-10	74.91	0.260	12.86	1.59	<0.10	0.081	0.140	0.59	4.52	3.97
PM17-7	77.13	0.150	11.50	1.76	0.14	0.018	0.059	0.17	3.56	4.49
PM17-10	77.64	0.140	11.30	1.83	0.46	0.052	0.059	0.41	3.55	4.65
样品编号	P₂O₅	烧失	ALK	K/Na	AKI	A/NK	A/CNK	τ	σ	D.I
QD047	0.014	0.48	8.71	1.38	0.92	1.09	1.01	122.42	2.32	95.01
QD086	0.013	0.33	8.62	1.50	0.98	1.02	0.96	155.83	2.17	96.35
D1548	0.012	0.41	7.71	1.32	0.88	1.13	1.11	124.08	1.71	95.81
PM16-10	0.037	0.53	8.49	0.88	0.91	1.10	1.01	66.85	2.25	94.67
PM17-7	0.015	0.47	8.06	1.26	0.70	1.07	1.05	51.65	1.90	96.38
PM17-10	0.012	0.42	8.20	1.31	0.73	1.04	0.97	56.91	1.94	95.67

样品号	Ba	Cd	Co	Cr	Cs	Hf	Li	Nb	Ni	Rb	Sc		Sr	Ta			Th
QD047	66.95	0.06	0.26	0.36	3.26	8.31	4.09	27.12	0.13	280.20	2.01		30.09	1.90			40.76
QD086	38.12	0.12	0.30	0.98	3.64	13.01	6.76	41.35	0.39	293.89	0.62		24.45	2.68			31.63
D1548	58.80	0.48	0.20	2.75	2.55	11.40	3.18	31.40	0.52	216.00	0.86		4.12	2.00			25.60
PM16-10	124.00	0.18	0.94	6.39	4.24	10.60	5.85	27.70	1.28	160.00	4.33		58.30	1.62			21.20
PM17-7	75.80	0.18	0.18	0.90	1.50	10.60	5.66	26.10	0.20	172.00	1.70		17.80	1.38			28.60
PM17-10	39.50	0.21	0.12	0.60	1.60	9.77	4.09	26.50	0.12	172.00	1.17		13.40	1.39			27.60
均值	67.20	0.21	0.33	2.00	2.80	10.62	4.94	30.03	0.44	215.68	1.78		24.69	1.83			29.23
样品号	U	V	Zr	K/Rb	Rb/Sr	Rb/Ba	Th/Ta	Ce	Dy	Er	Eu		Gd	Ho			La
QD047	6.51	1.08	267	150	9.31	4.19	21.45	174	11.1	6.32	0.35		10.40	2.21			87.9
QD086	8.09	2.72	337	146	12.01	7.71	11.80	87	15.1	9.20	0.11		12.60	3.16			40.5
D1548	4.02	11.60	320	169	52.42	3.67	12.80	92	10.6	6.67	0.11		9.84	2.12			56.7
PM16-10	3.28	18.90	289	206	2.74	1.29	13.09	98	8.9	5.44	0.57		8.90	1.76			42.1
PM17-7	4.20	2.47	378	217	9.66	2.27	20.72	150	10.6	5.67	0.27		12.4	1.96			111.0
PM17-10	3.63	1.32	351	224	12.84	4.35	19.86	167	9.7	5.32	0.17		10.2	1.82			84.0
均值	4.96	6.35	324	185	16.50	3.91	16.62	128	11.0	6.44	0.26		10.7	2.17			70.4
样品号	Lu	Nd	Pr	Sm	Tb	Tm	Y	Yb	ΣREE	LREE/HREE		(La/Yb)_N			δ_Eu	T_Zr(℃)
QD047	0.89	64.8	18.6	12.5	1.76	0.92	63.1	6.04	397.80	9.05		10.43			0.09	833
QD086	1.26	40.3	10.8	11.5	2.38	1.37	94.0	8.89	244.10	3.53		3.26			0.03	852
D1548	0.98	48.4	13.6	10.6	1.72	1.03	55.6	6.52	261.30	5.62		6.24			0.03	865
PM16-10	0.80	42.1	11.4	9.72	1.53	0.82	46.9	5.16	237.20	6.12		5.85			0.19	839
PM17-7	0.81	87.1	28.7	15.7	1.79	0.86	51.9	5.38	432.20	9.95		14.80			0.06	874
PM17-10	0.81	70.7	22.7	13.2	1.64	0.82	49.3	5.35	393.40	10.04		11.26			0.04	859
均值	0.93	58.9	17.6	12.2	1.80	0.97	60.1	6.22	327.67	7.39		8.64			0.07	854