西藏班戈县扎穷地区古生界混杂岩块中发现中生代化石
Mesozoic Fossils Discovered In the Paleozoic Melange at the Zhaqiong Area of Bange County, Tibet
查看参考文献31篇
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文摘
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西藏班戈县新吉乡扎穷地区新发现了晚侏罗世珊瑚化石10属11种:Stylina? sp. 、Goniocora annulata Roniewicz, Epistreptophyllum cf. cornutiformis (Gregory),Solenocoenia? sp.,Calamophylliopsis moreauana (Michelin), Thamnasteria? sp.,Clausastraea? sp.、Isastraea? sp. , Montlivaltia? sp. , Montlivaltia tenuilamellata Roniewicz,Thecosmilia? sp.,早白垩世珊瑚化石3属3种 :Eohydnophora tosaensis Yabe & Equchi、 Clausastraea tabulate Moryco wa 、 Stylosmilia baoj iensis sp. nov.,早白垩世腹足类化石5属8种:Mesoglauconia neumayri (Nagao), Rhabdocolpus asiaticum Djalilov, Pseudomesalia bangoinensis Yu, Mesoglauconia bicarinata (Hamlin), Mesoglauconia arkelli Mennessier, Nerinea domaensis Yu, Mesoglauconia cf. arkelli Mennessier, Microschiza cf. inflata Orbigny。根据上述化石,原中二叠统下拉组被修订为上侏罗统吐卡日组和下白垩统朗山组,原下石炭统永珠组被修订为下白垩统多尼组。上述地层时代修订的意义如下:①上侏罗统吐卡日组的分布范围向南可以到达扎穷地区,进一步否定了冈底斯南部在晚侏罗世是古陆的认识。②朗山组和多尼组的发现指示早白垩世海相地层分布范围向南可以扩展到扎穷地区,这对冈底斯南部在早白垩世是古陆或岛弧的认识提出了质疑。③扎穷地区不存在古生界岩块与中侏罗统蛇绿岩构造混杂的现象。本区的构造活动强度并不强烈,没有造成古生界岩块大规模出露并混杂堆积的现象。④因为吐卡日组、多尼组和朗山组分布范围的扩大、措勤盆地中部构造破坏并不强烈,所以措勤盆地的油气前景进一步变好。 |
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其他语种文摘
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Ten genus eleven species Late Jurassic corals,three genus three species Early Cretaceous corals, and five genus eight species Early Cretaceous gastropods were newly discovered in the north of the Zhaqiong area, Xinji township, Bange county Tibet. These Late Jurassic corals are Stylina? sp., Goniocora annulata Roniewicz, Epistreptophyllum cf. cornutiformis ( Gregory ), Solenocoenia? sp., Calamophylliopsis moreauana (Michelin), Thamnasteria? sp., Clausastraea? sp., Isastraea? sp., Montlivaltia? sp.,Montlivaltia tenuilamellata Roniewicz 、 Thecosmilia? sp. The Early Cretaceous corals are Eohydnophora tosaensis Yabe & Equchi, Clausastraea tabulate Morycowa, and Stylosmilia baojiensis sp. nov. . The Early Cretaceous gastropods are Mesoglauconia neumayri (Nagao), Rhabdocolpus asiaticum Djalilov,Pseudomesalia bangoinensis Yu, Mesoglauconia bicarinata ( Hamlin) 、Mesoglauconia arkelli Mennessier, Nerinea domaensis Yu, Mesoglauconia cf. arkelli Mennessie, Microschiza cf. inflata Orbigny. The corals indicate that the fossil-bearing strata are not Middle Permian as thought previously. These gastropods indicate that the fossil-bearing strata are not early Carboniferous as thought previously. Based on ayalysis above,the middle Devonian Xiala Fm. can be revised into Early Jurassic Tukari Fm. and Late Cretaceous Langshan Fm.,and Late Carboniferous Yongzhu Fm. into Early Cretaceous Duoni Fm. Significance of the revisions of the stratigraphic age is as follows.① The distribution of the Upper Jurassic Tukari Fm. can reach southward to the Zhaqiong area,further denying the understanding of that the southern Gangdise was oldland during late Jurassic.② The recent discovery of Early Cretaceous carbonate-facies Langshan Fm. and the shale-facies Duoni Fm. shows that the Early Cretaceous marine strata extend southwards into the Zhaqiong area,arising doubts to the understanding of that the southern Gangdise was oldland or island arc during Early Cretaceous.③ No tectonic melange was found to occur in Paleozoic rock and Middle Jurassic ophiloite at the Zhaqiong area, indicating no intensive tectonic activities. Thus, no large-sized outcropping and mixing melange accumulation were produced in the Paleozoic rocks.④ It was found that the Upper Jurassic Tukari Fm.,the Lower Cretaceous Duoni Fm. and Langshan Fm. in the studied area have not experienced strong tectonic destruction; therefore, the Cuoqing basin is of good potential of oil and gas prospect. |
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来源
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地质学报
,2017,91(4):812-821 【核心库】
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关键词
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西藏
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冈底斯古陆
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珊瑚
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腹足类
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晚侏罗世
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早白垩世
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吐卡日组
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多尼组
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地址
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1.
中国地质科学院地质研究所, 国土资源部地层与古生物重点实验室, 北京, 100037
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中国科学院南京地质古生物研究所, 南京, 210008
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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0001-5717 |
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学科
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古生物学 |
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基金
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国家自然科学基金项目
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国家科技基础性工作专项
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国土资源部中国地质调查局项目
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中央级公益性科研院所基本科研业务专项基金
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中央级公益性科研院所基本科研业务专项基金
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文献收藏号
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CSCD:5967952
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参考文献 共
31
共2页
|
|
1.
Klemme H D. Effective petroleum source rocks of the world : Stratigraphic distribution and controlling depositional factors.
Aapg Bulletin American Association of Petroleum Geologists,1991,75(12):1809-1851
|
被引
87
次
|
|
|
|
|
2.
付孝悦.
西藏高原石油地质,2004:1-178
|
被引
1
次
|
|
|
|
|
3.
纪占胜. 西藏措勤县敌布错地区“下拉组”中发现晚三叠世诺利期高舟牙形石.
地质通报,2006,25(1/2):138-141
|
被引
28
次
|
|
|
|
|
4.
纪占胜. 西藏西部狮泉河地区二叠纪和三叠纪牙形石的发现及其意义.
地质通报,2007,26(4):383-397
|
被引
27
次
|
|
|
|
|
5.
纪占胜. 西藏冈底斯西段措勤地区海相三叠系的划分.
地质通报,2007,26(8):947-952
|
被引
25
次
|
|
|
|
|
6.
纪占胜. 关于藏北改则地区夏岗江植物群及其地层时代的修订意见.
地质通报,2007,26(8):953-959
|
被引
14
次
|
|
|
|
|
7.
纪占胜. 西藏措勤盆地的上古生界-下中生界：潜在的油气沉积建造.
地质通报,2008,27(1):36-63
|
被引
17
次
|
|
|
|
|
8.
纪占胜. 西藏改则县物玛乡北部晚侏罗世吐卡日组珊瑚动物群的发现及其地质意义.
地质通报,2011,30(2/3):418-438
|
被引
14
次
|
|
|
|
|
9.
刘池洋. 羌塘中生代海相盆地演化与后期改造及油气赋存.
地质学报,2016,90(11):3259-3291
|
被引
18
次
|
|
|
|
|
10.
刘家铎.
青藏地区油气资源潜力分析与评价,2007:1-299
|
被引
8
次
|
|
|
|
|
11.
刘卫民. 含油气盆地远距离成藏模式与主控因素.
地质论评,2015,61(3):621-633
|
被引
13
次
|
|
|
|
|
12.
孟亚洲. 西藏保吉地区晚侏罗世珊瑚动物群的发现及其意义.
地质学报,2016,90(5):833-847
|
被引
13
次
|
|
|
|
|
13.
南征兵. 青藏高原重点沉积盆地油气勘探前景展望.
地质科技情报,2008,27(4):63-68
|
被引
10
次
|
|
|
|
|
14.
南征兵. 青藏高原重点盆地与特提斯构造域含油气盆地对比分析.
天然气地球科学,2012,23(6):1039-1044
|
被引
6
次
|
|
|
|
|
15.
潘桂棠. 冈底斯造山带的时空结构及演化.
岩石学报,2006,22(3):521-533
|
被引
517
次
|
|
|
|
|
16.
曲永贵. 西藏北部斑戈地层分区下白垩部郎山组、康曲组和余穷组地层层序研究.
地层学杂志,2003,27(3):220-225
|
被引
5
次
|
|
|
|
|
17.
王成善. 青藏高原油气资源远景评价问题.
石油学报,2006,27(4):1-7
|
被引
29
次
|
|
|
|
|
18.
王剑.
青藏高原重点沉积盆地油气资源潜力分析,2004:1-317
|
被引
33
次
|
|
|
|
|
19.
王剑.
青藏高原油气资源战略选区调查与评价,2009:1-645
|
被引
24
次
|
|
|
|
|
20.
武桂春. 西藏冈底斯西段措勤地区三叠纪牙形石生物地层特征.
地质通报,2007,26(8):938-946
|
被引
22
次
|
|
|
|
|
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