Knowledge Resource Center for Ecological Environment in Arid Area
| 塔理木盆地西南缘、巴楚、塔中、和田河、满西及塔北地区上泥盆统至下石炭统层序地层学研究 | |
| 陈中强 | |
| 出版年 | 1993 |
| 学位类型 | 硕士 |
| 导师 | 廖卓庭 |
| 学位授予单位 | 中国科学院南京地质古生物研究所 |
| 中文摘要 | 本文着重研究了塔理木盆地达木斯、巴楚、塔中、满西、和田河及塔北等到地区上统至下石炭统层序地层的划分与对比，试图为塔里木地氏的盆地分析及目前正进行着的油气勘探提供有益的资料。本文的露头剖面（塔西南达木斯剖面、巴楚小海子剖面）及10多口井（分布于塔中、满西、和田河及塔北地区）的井下资料。沙漠覆盖区的层序地层学研究主要是利用计算机对井下的γ--Ray曲线进行光谱分析而进行的。本次研究在工区的上泥盆统至下石炭统共识别出3个层序（相当Vail等1988的三级层序）：层序I发育有海进体系域（TST）、凝缩段（CS）及高水位体系域（HST）。层序II发育有低水位深切谷充填物（Inclsed Filled）、海进体系域（TST）、凝缩段（CS）及高水位体系域（HST）。层序III发育有海进体系域（TST）、凝缩段（CS）及高水位体系域（HST）。另外，在达木斯剖面的层序II、III中识别出35个间断加积旋回序列（相当准层序），对层序内部结构及层序发育过程作了较为细致的分析。本次研究得出一些新认识：巴楚组下段可与奇自拉夫组上段对比，为晚泥盆世沉积。“东河砂岩”段可与巴楚组底部的浅色石英砂岩对比，为晚泥盆世沉积。另外，本次研究从两条露头剖面中采集了丰富的腕足类化石，共42属67个种，其中包括3个新种。描述了其中部分化石。 |
| 英文摘要 | This article concentrates on Sequence Straigraphy of the upper Devonian to the lower Carboniferous from some areas of Tarim basin, inorder to Provide some useful information for the Analysis of Tarim basin and p 2 outcrop sections, 10 log wells in the Tarim basin, outcrop sections including Tamusi section (southwest of Tarim basin) and Xiaohaizi Section (in Bachu county); log wells were distributed cental area, northern area of T in the subground were depended on the sliding window spectral analysis of Gramma Ray log with the spectrum /cyclicity band and sequenw. 3 Squences (equal 3 orders sequence by Vail et 1988) were recognized. More, many Brachiopods fossils were collected from Tamusi sections(southwestern area of Tarim basin and north of Kunlun Mountain), genera and species including new species were described. Transgressive System Tracts (TST), Condensed Sections (CS)Highstand System Tracts (HST) and I type Sequence Boundary (SB) were identified in Sequence I; Lowstand System Tracts (LST) inclsed valley filled), TST, CS, HST and I type SB were identified in Sequence II from Tamusi section, II type SB was developed in Sequence II from Xiaohaizi section and CS, HST, III type SB(flooding unconformity type) were devoloped in Sequence II of the other areas covered by desert. TST, CS, HST and I type SB were developed in Squence III. Some conclusions were attained by studies of Sequence Striatigraphy and Palaeontologic Stratigraphy: According to Palaeontologi (Branchiopods) Stratigraphy, it was believed that Sequence I were developed during the late Famennian to Tournaisian. Sequence II, Sequence III were deposited during Visean. 35 puncted Aggresive Cycles sequence (PACs) (Goodwin and Anderson 1985) were identified in Sequence II, III from Tamusi section. Meanwhile, Sequence II were developed during the rapided eustatic rise and Sequence III were developed during the slow eustatic rise or stillstand of sea-level. So, a high order Sequence (equal Megasequence by Van Wagoner 1990) was consisted of Sequence II and Sequence III. The \ |
| 中文关键词 | 上泥盆统至下石炭统 ; 层序 ; 准层序 ; 东河砂岩 ; 层序地层对比 |
| 语种 | 中文 |
| 国家 | 中国 |
| 来源机构 | 中国科学院南京地质古生物研究所 |
| 资源类型 | 学位论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/286201 |
| 推荐引用方式 GB/T 7714 | 陈中强. 塔理木盆地西南缘、巴楚、塔中、和田河、满西及塔北地区上泥盆统至下石炭统层序地层学研究[D]. 中国科学院南京地质古生物研究所,1993. |
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