地质论评Issue(1)：109-120,12.
吉林桦甸市夹皮沟本区金矿剥露历史和矿床保存变化--来自磷灰石裂变径迹年代学证据
Denudation and Conservation History of Local District in Jiapigou Gold Deposit,Huadian County,Jilin Province---Evidence from Apitite Fission Track Thermochronology
摘要
Abstract
The denudation history of the Jiapigou gold deposit is still unknown nowadays.Even though a large number of researches have been done in Jiapigou,the calculation of denudation in this area is relatively virgin territory.However,it is denudation that is able to significantly unveil the preservation of deposit.Fission track is able to provide the accurate thickness of denudation and uplift efficiently.This article discusses the denudation history of local district in the Jiapigou gold deposit by means of apitite fission track (AFT)technique.The thermal history has been derived from the data of AFT.8 AFT ages have been obtained,and are divided into 3 groups of 128~111Ma and 86~64Ma,as well as 48~29Ma.Meanwhile,three phases,such as 160~(85 ±10)Ma,(85 ±10)~(28 ±2)Ma and (28 ±2)~0Ma,can be received by analyzing thermal history of 6 samples.The main thickness of the section removed by denudation of each phase are 2.90km,0,and 1.17km respectively,which predict that the gold deposit is still lying under earth's surface by comparing with the depth of mineralization.关键词
裂变径迹热年代学/剥蚀厚度/地质热历史/矿体保存Key words
fission track thermochronology/thickness of denudation/thermal history/conservation of deposit引用本文复制引用
冯云磊,袁万明,郝娜娜,段宏伟,陈小宁,曹建辉..吉林桦甸市夹皮沟本区金矿剥露历史和矿床保存变化--来自磷灰石裂变径迹年代学证据[J].地质论评,2015,(1):109-120,12.基金项目
本文为国家自然科学基金资助项目（编号41172088，40872141），中国地质调查局地质调查工作项目（编号基2011-03-04-06）和青海省地质调查局项目（编号青地调勘2013-103）的成果。 （）
