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首页> 外文期刊>AAPG Bulletin >Anatomy of a world-class source rock: Distribution and depositional model of Silurian organic-rich shales in Jordan and implications for hydrocarbon potential
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Anatomy of a world-class source rock: Distribution and depositional model of Silurian organic-rich shales in Jordan and implications for hydrocarbon potential

机译：世界一流烃源岩的解剖：约旦志留系富含有机质页岩的分布和沉积模型及其对油气潜力的启示

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摘要

Silurian organic-rich (hot) shales were the source of large amounts of hydrocarbons in northern Gondwana, with supergiant and giant fields in the Middle East and North Africa. A study of these black shales has been conducted in Jordan, where they represent the source for the Risha gas field. Two organically enriched horizons occur in the Silurian in Jordan, termed the lower hot shale and the upper hot shale. Deposition of the transgressive lower hot shale occurred during the early Llandoverian and was restricted to the earliest Silurian paleodepressions. Three lower hot shale depocenters have been identified in Jordan; they are located in the western Risha, eastern Wadi Sirhan, and Jafr areas. The eastern Risha area was part of a larger scale paleohigh covering northeast Jordan, most of Syria and Iraq, and north-central Saudi Arabia (Qusaiba area). At least in Jordan, the high coincides with the depocenter of the latest Ordovician glaciation. Sedimentation of the upper hot shale occurred around peak sea level during the late Llandoverian and/or early Wenlockian and was limited to the distal parts of the shelf (Risha area), in front of the prograding silty-sandy deltaic front.
机译：志留纪富含有机质（热）的页岩是冈瓦纳北部大量碳氢化合物的来源，在中东和北非地区有超大型油田和巨型油田。这些黑色页岩的研究 已在约旦进行，其中 代表了里沙气田的来源。约旦志留纪中出现了两个有机富集层，分别称为下热页岩和上热页岩。海侵性低层热页岩的沉积发生在早期的Llandoverian，并且被限制在最早的志留纪古低压之下。在约旦已经确定了三个 下部热页岩沉积中心； 它们位于里沙西部，瓦迪西尔汗东部， 和Jafr地区。 Risha东部地区是较大的 古隆起的一部分，覆盖了约旦东北部，叙利亚的大部分地区和 伊拉克以及北部中部的沙特阿拉伯（Qusaiba地区）。至少在约旦， 与最近的 奥陶纪冰川的沉积中心重合。上兰热页岩 的沉积作用发生在Llandoverian 和/或Wenlockian早期的峰值海平面附近，并且仅限于该段的远端 架子（里沙地区），位于逐渐变质的粉质桑迪 三角洲前。

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  • 来源
    《AAPG Bulletin》 |2005年第10期|00001397-00001427|共31页
  • 作者

    S. Lüning; Y. M. Shahin; D. Loydell; H. T. Al-Rabi; A. Masri; B. Tarawneh; S. Kolonic;

  • 作者单位

    Department of Geosciences-FB5, University of Bremen, P.O. Box 330 440, 28334 Bremen, Germanysebastian.luning@gmx.net;

    Natural Resources Authority, P.O. Box 7, Amman, Jordan;

    School of Earth and Environmental Sciences, University of Portsmouth, Burnaby Building, Burnaby Road, Portsmouth PO1 3QL, United Kingdom;

    Natural Resources Authority, P.O. Box 7, Amman, Jordan;

    Natural Resources Authority, P.O. Box 7, Amman, Jordan;

    Natural Resources Authority, P.O. Box 7, Amman, Jordan;

    Department of Geosciences-FB5, University of Bremen, P.O. Box 330 440, 28334 Bremen, Germanypresent address: Shell International Exploration & Production B.V., EP Research & Development (EPT-RXR), Kessler Park 1, 2288 GS Rijswijk, Netherlands;

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