Mesozoic-Cenozoic tectonic transition in Kuqa Depression-tianshan, northwest China: Evidence from sandstone detrital and geochemical records
文献类型：期刊论文
| 作者 | Li, Z; Guo, H; Wang, DX; Lin, W |
| 刊名 | SCIENCE IN CHINA SERIES D-EARTH SCIENCES
 |
| 出版日期 | 2005-09-01 |
| 卷号 | 48期号:9页码:1387-1402 |
| 关键词 | Tianshan Kuqa Depression Basin-range Depositional Record Tectonic Transition Mesozoic-cenozoic |
| ISSN号 | 1006-9313 |
| DOI | 10.1360/03yd0475 |
| 文献子类 | Article |
| 英文摘要 | Similar to compositional evolution of sandstone modes and detrital heavy minerals from different profiles in the Kuqa Depression, Northwest China, major element analysis of whole sandstones from the same profiles shows four discontinuous depositional interfaces or periods, respectively corresponding to Lower Triassic\Middle Triassic, Upper Jurassic\Lower Cretaceous, Lower Cretaceous\Paleogene and Miocene\Pliocene, and indicates five-phase evolution during Mesozoic-Cenozoic: (1) From the first to fifth phase, a depositional suite changes from maroon and coarse clastic, through grey-dark grey and fine, red and coarse, red-mottled, interlayered by gypsum, to brown and coarse clastic assemblages, accompanying detrital component evolution in unstable-stable-unstable-very unstable-very unstable assemblages. It is indicated that carbonate and complex detritus gradually dominate in sandstones in post-Late Jurassic, with rapid reduction of compositional maturity. (2) For major element geochemical parameters of whole sandstones, CaO and Fe(2)O(3)(*) +MgO contents show a change sequence in high-low-high-higher-highest values, with rapid increasing in post-Late Jurassic. (3) Contra some aggregative indicators for weathering indexes of sandstone detrital component, Al(2)O(3)/(CaO+Na(2)O) and ln(Q/(L+CE)), show a change sequence in low-high-low-lower-lowest ratios, with rapid decreasing in post-Late Jurassic. It is found that sandstone samples of the first, second and later three phases may be distinguished from the A-CN-K and A-CNK-FM diagrams respectively. Therefore, in the Kuqa Depression-Tianshan, the most important discontinuous depositional interface recording paleotectonic and paleoclimatic transition occurred in Early Triassic\Middle Triassic and Late Jurassic\Early Cretaceous, respectively, and, however, tectonic differentiations of basin-range system finally result in distinct depositional systems but similar detrital weathering indexes across the Lower Cretaceous\Paleogene and Miocene\Pliocene interfaces, respectively. |
| WOS关键词 | TIEN-SHAN ; CENTRAL-ASIA ; TARIM BASIN ; WEATHERING PROFILES ; SEDIMENTARY RECORD ; SOUTHERN JUNGGAR ; PLATE-TECTONICS ; NORTHERN TARIM ; WESTERN CHINA ; TURPAN BASINS |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000233073800007 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/65588]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Li, Z |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.CNPC, Tarim Oilfield Branch, Korla 841000, Peoples R China 3.Hefei Univ Ind, Hefei 230009, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Z,Guo, H,Wang, DX,et al. Mesozoic-Cenozoic tectonic transition in Kuqa Depression-tianshan, northwest China: Evidence from sandstone detrital and geochemical records[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2005,48(9):1387-1402. |
| APA | Li, Z,Guo, H,Wang, DX,&Lin, W.(2005).Mesozoic-Cenozoic tectonic transition in Kuqa Depression-tianshan, northwest China: Evidence from sandstone detrital and geochemical records.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,48(9),1387-1402. |
| MLA | Li, Z,et al."Mesozoic-Cenozoic tectonic transition in Kuqa Depression-tianshan, northwest China: Evidence from sandstone detrital and geochemical records".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 48.9(2005):1387-1402. |
入库方式： OAI收割
来源：地质与地球物理研究所
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