Morondava Basin

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Morondava Basin is one of the major sedimentary basins of Madagascar. It encompasses the large Tsimiroro heavy oil field [1] and giant Bemolanga ultra heavy oil field. [2]

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The Bemaraha Formation is a Middle Jurassic geological formation of the Morondava Basin of Madagascar. The lime mudstones, grainstones and limestones of the formation were deposited in lagoonal and reefal environments. Fossils of groups of invertebrates and theropod and sauropod tracks have been found in the formation. The Sahalaly River tracksite yielded a single trackway belonging to a quadrupedal dinosaur, possibly a sauropod. Sauropod tracks are rare, making up as little as 1 percent of the present sample. The best-preserved tracks are assigned to the ichnogenus Kayentapus.

<span class="mw-page-title-main">Junggar Basin</span> Sedimentary basin in Xinjiang, China

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Isalo II, also known as the Makay Formation, is an informal Triassic geological unit in Madagascar.

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The Dazhang Formation is a geologic formation in China. It preserves fossils dating back to the late Paleocene, including those of plants and mammals. The formation is primarily composed of interbedded marl, oil shale, claystone and glutenite. Depending on the section, the color of the mudstone may vary from green, red-brown or gray-black.

References

  1. Wenxiang, He; Kaixi, Jiang; Huan, Wan; Qingzheng, Guo; Jingjing, Li; Caishun, Zhao (2017-09-30). "Heavy Oil Accumulation Characteristics of the Tsimiroro Oilfield in Morondava Basin, Eastern Africa". 地质科技通报 (in Chinese). 36 (5): 60–68. ISSN   2096-8523.
  2. Wu, Da-tian; Ramaniraka, Johanne Iomimalala; Xu, Feng-ming; Shao, Jian-bo; Zhou, Yong-heng; Zhao, Yuan-dong; Ralison, Bruno (2019-03-01). "Characteristics and potential analysis of Madagascar hydrocarbon-bearing basins". China Geology. 2 (1): 56–66. doi: 10.31035/cg2018076 . ISSN   2096-5192.