贵州地质
貴州地質
귀주지질
GUIZHOU GEOLOGY
2014年
2期
82-88
,共7页
戴传固%郑启钤%陈建书%张慧%代雅然
戴傳固%鄭啟鈐%陳建書%張慧%代雅然
대전고%정계검%진건서%장혜%대아연
海西-燕山构造旋回期%地质背景%成矿作用%贵州
海西-燕山構造鏇迴期%地質揹景%成礦作用%貴州
해서-연산구조선회기%지질배경%성광작용%귀주
Haixi-Yanshantectoniccycle%Geologicbackground%Metallogenesis%Guizhou
贵州在海西-燕山构造旋回期同时受东南侧江南复合造山带和西南侧特提斯域的发展演化影响,从晚古生代开始发生陆内裂陷,三叠纪初转化为前陆盆地,燕山运动使贵州进入板内造山阶段,形成前陆盆地典型褶皱样式侏罗山式褶皱和浅层滑脱构造等。其裂陷盆地和前陆盆地控制了沉积型、喷流沉积型矿产资源的时空产出,代表性矿种有煤、锰、铝土矿、烃源岩及页岩气等。而以金锑砷汞、铅锌、软玉等内生热液型、沉积改造型矿产明显受浅层滑脱构造、板内岩浆岩控制。由于该时期贵州所处前陆盆地之构造位置,形成了贵州非常有特色的中低温成矿域。
貴州在海西-燕山構造鏇迴期同時受東南側江南複閤造山帶和西南側特提斯域的髮展縯化影響,從晚古生代開始髮生陸內裂陷,三疊紀初轉化為前陸盆地,燕山運動使貴州進入闆內造山階段,形成前陸盆地典型褶皺樣式侏囉山式褶皺和淺層滑脫構造等。其裂陷盆地和前陸盆地控製瞭沉積型、噴流沉積型礦產資源的時空產齣,代錶性礦種有煤、錳、鋁土礦、烴源巖及頁巖氣等。而以金銻砷汞、鉛鋅、軟玉等內生熱液型、沉積改造型礦產明顯受淺層滑脫構造、闆內巖漿巖控製。由于該時期貴州所處前陸盆地之構造位置,形成瞭貴州非常有特色的中低溫成礦域。
귀주재해서-연산구조선회기동시수동남측강남복합조산대화서남측특제사역적발전연화영향,종만고생대개시발생륙내렬함,삼첩기초전화위전륙분지,연산운동사귀주진입판내조산계단,형성전륙분지전형습추양식주라산식습추화천층활탈구조등。기렬함분지화전륙분지공제료침적형、분류침적형광산자원적시공산출,대표성광충유매、맹、려토광、경원암급혈암기등。이이금제신홍、연자、연옥등내생열액형、침적개조형광산명현수천층활탈구조、판내암장암공제。유우해시기귀주소처전륙분지지구조위치,형성료귀주비상유특색적중저온성광역。
InHaixi-Yanshantectoniccycle,GuizhouwasinfluencedbyJiangnancompositeorogenicbelt in the southeast and Tethys in the southwest in the same time,the continent began to rift from Late Paleozoic, became forelandbasin in early Trias.Yanshan movement make Guizhou in the period of intraplate orogenic, formed Jura type of folding and shallow detachment structure which are the typical folding of foreland basin. The rifting basin and foreland basin controlled the spatial and temporal occurrence of sedimentary and eruptive mineral resources,such as coal,manganese,bauxite,and source rock and shale gas.The gold-antimony-ar-senic-mercury,lead-zinc,nephrite and other endogenous hydrothermal,sedimentary transformation minerals were controlled shallow detachment and continental magma.Because the foreland basin position of Guizhou in this period,the special low-middle temperature metallogenic domain formed.