Abstract

Global Geology 2012, 15(2) 105-113 DOI: ISSN: 1673-9736 CN: 22-1371/P

Current Issue | Archive | Search [Print] [Close]

��

	Information and Service

	This Article
	Supporting info
	PDF(982KB)
	[HTML]
	Reference
	Service and feedback
	Email this article to a colleague
	Add to Bookshelf
	Add to Citation Manager
	Cite This Article
	Email Alert
	Keywords
	kaolinite
	dawsonite
	transformation
	Songliao Basin
	Authors
	GUI Lily1
	2
	LIU Li1
	YU Miao1
	LIU Na1
	YANG Huidong1
	3 and ZHANG Yongmei4
	PubMed
	Article by GUI Lily1
	Article by 2
	Article by LIU Li1
	Article by YU Miao1
	Article by LIU Na1
	Article by YANG Huidong1
	Article by 3 and ZHANG Yongmei4

Petrological evidence of kaolinite transformation to dawsonite

GUI Lily1, 2, LIU Li1, YU Miao1, LIU Na1, YANG Huidong1, 3 and ZHANG Yongmei4

1�� College of Earth Sciences��Jilin University��Changchun 130061��China; 2�� CNPC Key Laboratory for Basin Structure and Hydrocarbon Accumulation��Research Institute of Petroleum Exploration and Development��PetroChina��Beijing 100083��China; 3�� Exploration and Development Research Institute��Jilin Oilfield Branch��PetroChina��Songyuan 138001��Jilin��China; 4�� Exploration and Development Research Center��Qinghai Oilfield��CNPC��Dunhuang 736202��Gansu��China

Abstract��

Clay minerals��especially authigene kaolinite��are abundant in the dawsonite-bearing sandstone from the Gudian and Qian'an regions in the southern Songliao Basin�� The relationship between dawsonite and kaolinite has been investigated based on drilling data from 50 wells in the Jilin Oil Field and petrological characteristics analyses on 23 core samples from the Gudian and Qian'an regions�� The study revealed a negative relationship between the content of dawsonite and kaolinite��suggesting that kaolinite was replaced by the dawsonite�� Combined with thermodynamics and geochemical analysis published previously��it is concluded that kaolinite is unstable under CO2-rich environments and can transform into dawsonite��

Keywords�� kaolinite dawsonite transformation Songliao Basin

Received Revised Online:

DOI:

Fund:

Corresponding Authors:

Email:

About author:

References��

Similar articles

1��LI Yong, REN Yunsheng, HAO Yujie, YANG Qun.Ore-forming fluid characteristics and genesis of vein-type lead-zinc mineralization of Xiaohongshilazi deposit,Jilin Province, China[J]. Global Geology, 2017,20(4): 191-199

2��WANG Yang, SUN Fengyue, GAO Hongchang, HE Shuyue, QIAN Ye, XU Chenghan.Geochronology and geochemistry of Hutouya monzonitic granite of Qimantage, Qinghai[J]. Global Geology, 2017,20(4): 208-216

3��LIU Hang, ZHU Jianwei, CHEN Jingwu.Application of sedimentary pyrite in paleo-environment:a case study of Meihe Formation[J]. Global Geology, 2017,20(4): 229-236