内蒙古西乌珠穆沁旗哲斯组宏体化石新发现和沉积相分析
Sedimentary facies analyses and discovery of gastropods from Zhesi Formation in the south of West Ujimqin, Inner Mongolia and their significances
查看参考文献52篇
|
文摘
|
详细的沉积相分析表明内蒙古西乌珠穆沁旗南部哲斯组下部为一套滨浅海相地层，上部逐渐向陆相地层转变，代表向上变浅的沉积序列。在西乌珠穆沁旗西南毛登地区前人发现放射虫的哲斯组相同地点和层位发现了宏体的腹足类螺化石及双壳类化石，环境分析表明这些宏体化石应形成于近岸的潮间带或潮下带水体。对中二叠统哲斯组地层进行了横向对比研究，表明哲斯组在内蒙古中东部地区以浅海相和滨浅海相为主体，而非深海洋盆。 |
|
其他语种文摘
|
As the representative Middle Permian strata in Inner Mongolia, Zhesi Formation is widely distributed in Inner Mongolia, from Zhesiaobao area to the west,through Sunidzuoqi-Xilinhot-West Ujimqin, extending to Suolun of Wulanhot,which is important to decipher the tectonic setting of western Xing-Meng Orogenic Belt. In order to better understand the sedimentary environment of Inner Mongolia in Middle Permian and further discuss the tectonic setting, detailed sedimentological and paleontological studies were performed to the Zhesi Formation in the West Ujimqin and Maodeng area. The Zhesi Formation from West Ujimqin recorded a section from fine-grained sandstone and limestone at the lower part with abundant of brachiopoda, coral and bryozoon fossils, and conglomerate at the upper part, representing a shallowing upward sequence from shallow marine facies to marine-continental alternating and continental facies. The Zhesi Formation in Maodeng area also recorded a shallowing upward sequence from mudstone nodular bearing black mudstone at the bottom, sandstone in the middle and coarse-grained sandstone on the top. Radiolarian was reported from the bottom black mudstone of this section several years ago,which was thought to represent deep-sea environment and to be the important evidence for the existence of Paleo-Asian Ocean during the Middle Permian. Our new paleontological study identified gastropods and bivalve fossils from the bottom black mudstone, indicating that they were deposited in offshore intertidal zone or subtidal zone. Meanwhile, plant fossils were reported from nearby, indicating proximal deposition. So, both the new fossils we found and the plant fossils reported nearby do not support a deep-sea environment for the Zhesi Formation in Maodeng area. From invoking the worldwide studies of radiolarian, it can be preserved in all kinds of marine deposition,with no direct connection to deep sea environment. Hence, the radiolarian found in Maodeng area and its representing environment should be considered seriously. Detailed sedimentological and paleontological studies have been carried out on Zhesi Formation in several areas of Inner Mongolia. In Zhesiaobao area, fine-grained sandstone and limestone dominated the sequence, with famous Zhesi fauna found therein, indicating shallow marine facies. In Sunidzuoqi area,the Zhesi Formation was mainly composed of alluvial-fluvial conglomerate and sandstone, with some plant fossils. In the West Ujimqin area, the Zhesi Formation displays a transition from transgression systems tract through highstand systems tract to regression systems tract,representing the deposition during shrinkage of the basin,after which the whole area uplifted successively and came into a continental environment. Combining with previous researches and lateral sedimentary environment comparison from Zhesiaobao, Sunidzuoqi,Maodeng and West Ujimqin, shallow marine facies clastic rocks and limestone deposition dominated the Zhesi Formation in most areas,with continental coarse-grained clastic deposition only distributed in Sunidzuoqi area. Furthermore, the Zhesi Formation displays a shallowing upward sequence, with proximal coarse-grained clastic deposition on the top, indicating a transition from shallow marine to epicontinental or continental sediment. Therefore,the Zhesi Formation in Inner Mongolia do not support a deep sea environment, the Paleo-Asian Ocean have been closed before the Middle Permian. |
|
来源
|
岩石学报
,2014,30(7):1889-1898 【核心库】
|
|
关键词
|
腹足类螺化石
;
沉积相分析
;
哲斯组
;
西乌珠穆沁旗
;
古亚洲洋
|
|
地址
|
1.
北京大学地球与空间科学学院, 造山带与地壳演化教育部重点实验室, 北京, 100871
2.
沈阳地质矿产研究所, 沈阳, 110034
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1000-0569 |
|
学科
|
地质学 |
|
基金
|
国家973计划
;
国家自然科学基金项目
;
国土资源部中国地质调查局项目
|
|
文献收藏号
|
CSCD:5188622
|
参考文献 共
52
共3页
|
|
1.
Aldea C. Bathymetric zonation and diversity gradient of gastropods and bivalves in West Antarctica from the South Shetland Islands to the Bellingshausen Sea.
Deep Sea Research Part I : Oceanographic Research Papers,2008,55(3):350-368
|
被引
2
次
|
|
|
|
|
2.
Bao Q Z. Carboniferous-Permian marine lithostratigraphy and sequence stratigraphy in Xi Ujimqin Qi, southeastern Inner Mongolia, China.
Geological Bulletin of China, (in Chinese with English abstract),2006,25(5):571-579
|
被引
1
次
|
|
|
|
|
3.
Bishop M J. Dispersal of the estuarine gastropod Pyrazus ebeninus is only weakly influenced by pneumatophore density.
Journal of Experimental Marine Biology and Ecology,2007,340(1):62-69
|
被引
1
次
|
|
|
|
|
4.
Caridroit M. Premiere datation des lydiennes paleozoiques dans les Hellenides internes (mont Parnis, Grece) ; implications geologiques.
Comptes Rendus de l' Academie des Sciences-Series IIA-Earth and Planetary Sciences,2000,331(6):413-418
|
被引
1
次
|
|
|
|
|
5.
Caridroit M. Discovery of radiolaria and conodonts in the Carboniferous-Permian of San Salvador Patlanoaya (Puebla, Mexico): Biostratigraphic implications.
Comptes Rendus Palevol,2002,1(4):205-211
|
被引
2
次
|
|
|
|
|
6.
Chapman M G. A comparative study of differences among species and patches of habitat on movements of three species of intertidal gastropods.
Journal of Experimental Marine Biology and Ecology,2000,244(2):181-201
|
被引
1
次
|
|
|
|
|
7.
Crowe T. Different effects of microhabitat fragmentation on patterns of dispersal of an intertidal gastropod in two habitats.
Journal of Experimental Marine Biology and Ecology,1996,206(1/2):83-107
|
被引
2
次
|
|
|
|
|
8.
Jian P. Time scale of an early to mid-Paleozoic orogenic cycle of the long-lived Central Asian Orogenic Belt, Inner Mongolia of China: Implications for continental growth.
Lithos,2008,101:233-259
|
被引
320
次
|
|
|
|
|
9.
Jian P. Evolution of a Permian intraoceanic arc-trench system in the Solonker suture zone, Central Asian Orogenic Belt, China and Mongolia.
Lithos,2010,118:169-190
|
被引
232
次
|
|
|
|
|
10.
Kametaka M. Sedimentary environments of the Middle Permian phosphorite-chert complex from the northeastern Yangtze platform, China, the Gufeng Formation : A continental shelf radiolarian chert.
Sedimentary Geology,2005,174(3/4):197-222
|
被引
56
次
|
|
|
|
|
11.
Kieniewicz J M. Hydrologic and climatic implications of stable isotope and minor element analyses of authigenic calcite silts and gastropod shells from a Mid-Pleistocene pluvial lake, Western Desert, Egypt.
Quaternary Research,2007,68(3):431-444
|
被引
1
次
|
|
|
|
|
12.
Kohn A J. An Early Pleistocene molluscan assemblage from Fiji : Gastropod faunal composition, paleoecology and biogeography.
Palaeogeography, Palaeoclimatology, Palaeoecology,1999,146(1/4):99-145
|
被引
1
次
|
|
|
|
|
13.
Li G. Confirmation of an Early Cretaceous age for the Qihulin Formation in eastern Heilongjiang Province, China : Constraints from a new discovery of radiolarians.
Cretaceous Research,2003,24(6):691-696
|
被引
6
次
|
|
|
|
|
14.
Li J Y. Permian geodynamic setting of Northeast China and adjacent regions : Closure of the Paleo-Asian Ocean and subduction of the Paleo-Pacific Plate.
Journal of Asian Earth Sciences,2006,26(3/4):207-224
|
被引
509
次
|
|
|
|
|
15.
Mitsugi T. Radiolarian-bearing conglomerate from the Hayang Group, the Kyongsang Supergroup, southeastern Korea.
Journal of Asian Earth Sciences,2001,19(6):751-763
|
被引
1
次
|
|
|
|
|
16.
Oleinik A E. Eocene gastropods of western Kamchatka : Implications for high-latitude north pacific biostratigraphy and biogeography.
Palaeogeography, Palaeoclimatology, Palaeoecology,2001,166(1/2):121-140
|
被引
1
次
|
|
|
|
|
17.
Pan H Z. Early Cretaceous non-marine gastropods from the Xiazhuang Formation in North China.
Cretaceous Research,2007,28(2):215-224
|
被引
2
次
|
|
|
|
|
18.
Pan Y T.
Permian Gastropoda of China,1993
|
被引
1
次
|
|
|
|
|
19.
Shang Q H. Occurrences of Permian radiolarians in central and eastern Nei Mongol (Inner Mongolia) and their geological significance to the northern China Orogen.
Chinese Science Bulletin,2004,49(24):2613-2619
|
被引
20
次
|
|
|
|
|
20.
Smith J R. Constraints on Pleistocene pluvial climates through stable-isotope analysis of fossil-spring tufas and associated gastropods, Kharga Oasis, Egypt.
Palaeogeography,Palaeoclimatology,Palaeoecology,2004,206(1/2):157-175
|
被引
6
次
|
|
|
|
|
了解气象卫星更多信息，请访问