海南澄迈平坡岭新近纪煤层的发现及其对琼北盆地演化的制约  

Discovery of Neogene Coal Seam in Pingpoling,Chengmai,Hainan Province and Its Constraints on the Evolution of Qiongbei Basin

作　　者：吴俊 张楗钰 王磊 杨文强[1,2] 卜建军 龙文国 周岱 梁定勇[4] WU Jun;ZHANG Jian-Yu;WANG Lei;YANG Wen-Qiang;BU Jian-Jun;LONG Wen-Guo;ZHOU Dai;LIANG Ding-Yong(Wuhan Center of China Geological Survey(Central South China Innovation Center for Geosciences),Wuhan 430205,Hubei,China;Hubei Key Laboratory of Paleontology and Geological Environment Evolution,Wuhan 430205,Hubei,China;Research Center for Petrogenesis and Mineralization of Granitoid Rocks,China Geological Survey,Wuhan 430205,Hubei,China;Geological Comprehensive Survey Institute of Hainan,Haikou 570206,Hainan,China)

机构地区：[1]中国地质调查局武汉地质调查中心(中南地质科技创新中心),武汉430205 [2]古生物与地质环境演化湖北省重点实验室,武汉430205 [3]中国地质调查局花岗岩成岩成矿地质研究中心,武汉430205 [4]海南省地质综合勘察院,海口570206

出　　处：《华南地质》2022年第1期147-156,共10页South China Geology

基　　金：中国地质调查局地质调查项目(DD20190047、DD20221634)。

摘　　要：新近纪是海南的主要成煤期之一,煤层主要见于王五-文教断裂以北的儋州市长坡盆地和临高县南宝-加来盆地的长坡组。本文记述了在长安盆地澄迈县瑞溪镇平坡岭发现的含煤地层,扩展了煤层的分布范围。通过与长坡盆地、南宝-加来盆地煤系地层的对比研究,暂将其划归长坡组。通过对比长坡盆地、南宝-加来盆地和平坡岭中新世-中更新世的地层序列,并结合福山盆地澄迈地区北东向联孔剖面的沉积序列,认为中新世晚期王五-文教断裂的构造活动导致了琼北地区发生了南升北降的沉积构造分异,而在上新世晚期-早更新世则是南降北升的沉积构造分异。The Neogene is one of the main periods of coal formation in Hainan Province while the coal seams are mainly found in the Changpo Basin north of Wangwu-Wenjiao fault in Danzhou City and Changpo Formation from Nanbao-Jialai Basin in Lingao County.A coal-bearing sequence was discovered in Chang’an Basin in Pingpoling,Ruixi Town,Chengmai County,which expanded the distribution of coal seams.It is temporarily classified as the Changpo Formation after stratigraphic comparison with the coal-bearing strata in the Changpo Basin and the Nanbao-Jialai Basin.By comparing the Miocene-Middle Pleistocene stratigraphic sequence of the Chang’an Basin with that of the Changpo Basin and the Nanbao-Jialai Basin,together with the depositional sequence of the north-east-trending drillholes section in Chengmai area of the Fushan Basin,it is considered that the tectonic activity of the Wangwu-Wenjiao fault in the late Miocene led to a sedimentary structural differentiation of rising in the south side of the fault while declining in the north side in northern Hainan Island,while it is reversed from late Pliocene to early Pleistocene.

关 键 词：长坡组 煤层 海南澄迈 琼北盆地 王五-文教断裂 

分 类 号：P534.6[天文地球—古生物学与地层学] P618.11[天文地球—地质学]