CAJ | 학술논문

贵州紫云地区上泥盆统代化组以海相碳酸盐岩为主,该组地层发育多套重力流沉积及两套风暴岩的沉积,其中重力流沉积主要以多期块状杂基支撑的砾屑灰岩组成的碎屑流充填为特征,而风暴岩沉积特征主要包括侵蚀构造、洼状交错层理、递变层理及泄水构造等.通过研究发现,本区风暴重力流共发育 3种沉积序列组合,这3种序列组合代表了较深水的古地理环境,这就证实了滇黔桂盆地在泥盆纪台地间槽盆环境的存在,其风暴岩的发现指示了研究区晚泥盆世应位于赤道附近的低纬度区域,气候温暖,水体清洁.
귀주자운지구상니분통대화조이해상탄산염암위주,해조지층발육다투중력류침적급량투풍폭암적침적,기중중력류침적주요이다기괴상잡기지탱적력설회암조성적쇄설류충전위특정,이풍폭암침적특정주요포괄침식구조、와상교착층리、체변층리급설수구조등.통과연구발현,본구풍폭중력류공발육 3충침적서렬조합,저3충서렬조합대표료교심수적고지리배경,저취증실료전검계분지재니분기태지간조분배경적존재,기풍폭암적발현지시료연구구만니분세응위우적도부근적저위도구역,기후온난,수체청길.
The Upper Devonian Daihua Formation in Ziyun, Guizhou is composed mainly of carbonate rocks, in which several sets of gravity flow deposition and two sets of storm deposition were developed. The gravity flow deposition is characterized by debris flow's filling consisting of multi-phase calcarenite with matrix support,whereas the storm sedimentation by erosion structures, sag-like cross-bedding, graded bedding and drainage structure and et al. The research reveals that the gravity flow in this area resulted in three types of depositional succession association, indicating a deep-water environment, and further confirming the existence of Dianqiangui Basin within platform and trough in Devonian. Discovery of tempestite also indicates that study area should be located in the low-latitude situation near the equator during late Devonian, with warm climate and clean water.