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首页> 外文会议>Basic Science International Conference >Tectonostratigraphic Analysis and Depositional Pattern of South Palembang Sub-Basin, South Sumatra Basin
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Tectonostratigraphic Analysis and Depositional Pattern of South Palembang Sub-Basin, South Sumatra Basin

机译：南苏门答腊盆地南部山地盆地的构造子系统分析与沉积图案

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South Sumatra Basin is divided into several sub-basins, one of which is the South Palembang Sub-Basin. Tectonostratigraphic analysis on South Palembang Sub-Basin was conducted to determine the history of sedimentation and tectonic history. Methods consist of the integration of mudlog, well log, checkshot and seismic data. Qualitatively, litofasies analysis is done from well log data and mudlog data. Well seismic ties on seismic data used checkshot and well log data. Picking layer and faults interpretation was conducted on the seismic data to create a depth structure and isopach map in each formation. Tectono stratigraphy analysis in this research area included basement, Lemat, Talang Akar, Baturaja, and Gumai Formations. Determination of formation boundaries was based on rock characteristics and stratigraphic seismic patterns. The South Palembang Sub-Basin was formed by three tectonic phases since the Mesozoic and structural reactivation during the Plio-Plistocene. The changes in the sedimentary environment were occurring from the Lemat to the Gumai Formation and showed a deepening pattern that indicates a further shift towards the ocean occurring during a rise in sea level. The Talang Akar Formation is deposited in braided fluvial environments up to the prodelta. The Baturaja Formation is sedimented on the carbonate environment, and the Gumai Formation is precipitated in a deepwater environment. Extensional tectonic processes in the late Cretaceous to early Miocene affected the Lemat and Talang Akar formations. The structure that controls the deposition of the Lemat Formation and Talang Akar Formation is the South Palembang 1(SP1) fault, which is an inverse fault with NNW-SSE direction. The Lemat and Talang Akar Formation are syn-rift deposits, as is indicated by the thickening of the hanging-wall of SP1 fault. That thickening was not found in Baturaja and Gumai Formations, indicating the post-rift deposits.
机译：南苏门答腊盆地划分为若干子流域，其中之一是巨港南子流域。被进行了巨港南子流域的构造地层分析，以确定沉降和构造历史的历史。方法包括mudlog的整合，测井，检验和地震数据。定性，litofasies分析完成从测井数据和mudlog数据。地震数据以及地震的关系用检验和测井数据。采摘层和故障解释是对地震数据进行以创建深度结构和在每个形成等厚线图。在这一研究领域构造格局的地层分析包括地下室，Lemat，踏浪阿卡尔，Baturaja和Gumai地层。地层边界的确定是基于岩石特征和地层地震模式。南巨港子流域是由自上新世 - Plistocene在中生代和结构重新构造3个阶段形成的。在沉积环境的变化是从Lemat发生的Gumai形成，并呈现出不断深化的图案，表示对海平面上升过程中发生的大海的进一步转变。该踏浪阿卡尔形成沉积于辫状河环境到前三角洲。所述Baturaja形成是沉降在碳酸盐环境，并且Gumai形成是在深水环境中沉淀。在晚白垩世至早中新世伸展构造过程影响的Lemat和踏浪阿卡尔编队。的结构，其控制Lemat形成与踏浪阿卡尔组沉积是南方巴领旁1（SP1）的故障，这是一个逆断层与西北偏北-SSE方向。的Lemat和踏浪阿卡尔形成被同裂谷沉积物，如由SP1故障的吊壁的增厚表示。那增厚不Baturaja和Gumai地层中发现，这表明后裂谷沉积物。

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