| 西沙西科1井第四系生物礁-碳酸盐岩的岩石学特征 |
| |
| 引用本文： | 孙志鹏,尤丽,李晓,刘立,廖静,刘娜,赵爽,于亚苹.西沙西科1井第四系生物礁-碳酸盐岩的岩石学特征[J].地球科学,2015,40(4):653-659. |
| |
| 作者姓名： | 孙志鹏 尤丽 李晓 刘立 廖静 刘娜 赵爽 于亚苹 |
| |
| 作者单位： | 1.中海石油(中国)有限公司湛江分公司, 广东湛江 524057 |
| |
| 基金项目： | 国家重大专项(No.2011ZX05025-002);中国海洋石油总公司项目(No.CNOOC-2013-ZJ-01) |
| |
| 摘 要： | 从西科1井生物礁-碳酸盐岩的岩心观察和岩石学特征的分析入手, 重点刻画了第四系全新-更新统乐东组生物礁-碳酸盐岩的岩石类型和生物礁类型.543片铸体薄片分析和214.89 m岩心观察表明: 岩石类型主要为粒泥灰岩、泥粒灰岩和骨架灰岩, 其次为粘结灰岩、颗粒灰岩、漂砾灰岩和砾屑灰岩.在纵向上, 埋深0~10 m层段以颗粒灰岩为主, 埋深10~22 m层段为生物碎屑砂分布段, 埋深22.00~214.89 m层段以粒泥灰岩、泥粒灰岩和骨架灰岩为主.生物礁类型以骨架礁为主, 造礁生物为珊瑚和少量珊瑚藻.骨架礁在埋深0~214.89 m均有发育, 丛状和块(段)状礁仅分布于埋深83~98 m.
|
| 关 键 词： | 西沙海域 第四系 生物礁 碳酸盐岩 岩石类型 |
| 收稿时间： | 2014-08-09 |
Petrologic Characteristics of Quaternary Reef-Carbonate Rocks in Well Xike-1, Xisha Area |
| |
| Sun Zhipeng;You Li;Li Xiao;Liu Li;Liao Jing;Liu Na;Zhao Shuang;Yu Yaping.Petrologic Characteristics of Quaternary Reef-Carbonate Rocks in Well Xike-1, Xisha Area[J].Earth Science-Journal of China University of Geosciences,2015,40(4):653-659. |
| |
| Authors: | Sun Zhipeng;You Li;Li Xiao;Liu Li;Liao Jing;Liu Na;Zhao Shuang;Yu Yaping |
| |
| Affiliation: | Sun Zhipeng;You Li;Li Xiao;Liu Li;Liao Jing;Liu Na;Zhao Shuang;Yu Yaping;Zhanjiang Branch of China National Offshore Oil Corporation (CNOOC)Limited;School of Earth Sciences,Jilin University; |
| |
| Abstract: | The reef-carbonate rock types and reef types are described based on the core observation and petrologic characteristic analysis of reef-carbonate rocks in well Xike-1. Analyses of 543 casting lamellas and observation of 214.89 m core samples indicate that the reef-carbonate rock types are composed mainly of wackstone, packstone and framestone, and secondly of bindstone, grainstone, floatstone and rudstone. Vertical variations of rock types are characterized by dominant grain stone at a depth of 0-10 m, bioclastic calcarenite at a depth of 10-22 m, and wackstone, packstone and framestone at a depth of 22-214.89 m, respectively. It is concluded that the reef types are frame reefs and main reef-building organisms consisting of corals and a few coralline algae by the quantitative analysis results. Frame reefs develop at the depth of 0-214.89 m, and cluster and segment reefs only develop at the depth of 83-98 m. |
| |
| Keywords: | Xisha area Quaternary reef carbonate rock rock type |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《地球科学》浏览原始摘要信息 |
|
点击此处可从《地球科学》下载全文 |
|
