Middle Miocene Sedimentary Characteristics and Main Controlling Factors in the Southern Margin of Kalimantan Island

doi:10.11867/j.issn.1001-8166.2021.080

Advances in Earth Science ›› 2022, Vol. 37 ›› Issue (3): 253-267. doi: 10.11867/j.issn.1001-8166.2021.080

Middle Miocene Sedimentary Characteristics and Main Controlling Factors in the Southern Margin of Kalimantan Island

Weimin RAN ¹ ^, ²( ), Xiwu LUAN ³( ), Xinyuan WEI ⁴, Yintao LU ⁵, Hong LIU ¹ ^, ², Chuanhong YE ³, Jia WANG ⁴, Qing HU ³, Dandan ZHANG ²

^1.Qingdao Institute of Marine Geology，China Geological Survey，Qingdao 266237，China
^2.Laboratory for Marine Mineral Resources，Pilot National Laboratory for Marine Science and Technology （Qingdao），Qingdao 266237，China
^3.College of Earth Sciences and Engineering，Shandong University of Science and Technology，Qingdao 266590，China
^4.College of Marine Geosciences，Ocean University of China，Qingdao 266100，China
^5.PetroChina Hangzhou Research Institute of Geology，Hangzhou 310023，China

Received:2021-07-13 Revised:2021-12-19 Online:2022-03-10 Published:2022-04-14
Contact: Xiwu LUAN E-mail:ranweim@163.com;xluan@sdust.edu.cn
About author:RAN Weimin (1990-), male, Taian City, Shandong Province, Assistant professor. Research areas include analysis and research of continental margin structures and basins. E-mail: ranweim@163.com
Supported by:
the National Natural Science Foundation of China "Tectonic deformation records of the East Java back-arc basin behind the Sunda arc during the early subduction of the Roo Rise in the East Indian Ocean"(42006067);The China-ASEAN Maritime Cooperation Fund Project "China-ASEAN Marine Seismic Data Center"(12120100500017001)

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Weimin RAN, Xiwu LUAN, Xinyuan WEI, Yintao LU, Hong LIU, Chuanhong YE, Jia WANG, Qing HU, Dandan ZHANG. Middle Miocene Sedimentary Characteristics and Main Controlling Factors in the Southern Margin of Kalimantan Island[J]. Advances in Earth Science, 2022, 37(3): 253-267.

Kalimantan Island is located in central Southeast Asia. Since the Cenozoic， the most significant tectonic feature of Kalimantan Island has been that it experienced counter-clockwise rotation as a result of plate tectonic movement in Southeast Asia. This study focuses on the regional tectonic-sedimentary response characteristics of large-scale tectonic events in Southeast Asia during the Miocene. Based on a systematic review of the characteristics of the Miocene delta sedimentary system in the Kutei Basin （Southeast Kalimantan Island）， and the analysis of the characteristics of the Miocene semi-deep bathyal slope and basin floor sedimentary system in the East Java Basin （South Kalimantan Island）， this paper comprehensively discusses the characteristics and sedimentary response to the Miocene regional tectonic inversion in the southern margin of Kalimantan Island. Approximately 15 Ma during the Middle Miocene， a large-scale Mahakan progressive delta depositional system was formed. According to the drilling and seismic data constraints， the initial development time of the Miocene semi-deep bathyal slope and basin-floor sedimentary system in the East Java Basin is approximately 16-15 Ma. The initial development times of the two sedimentary systems were similar. The paper holds that the large-scale tectonic inversion events during the Middle Miocene in Southeast Asia are the main controlling factors for the development of the two sedimentary systems in the southern margin of Kalimantan Island. In the same period， the open deep-water environment of the Kutei Basin and the East-West narrow extended semi-deep bathyal environment of the East Java Basin created sufficient space for the development of a large-scale progradational delta sedimentary system in the Kutei Basin and semi-deep bathyal turbidite in the East Java Basin.

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