| 词条 | Pebbly Arkose Formation | |||||||||||||||||||||||||||||||
| 释义 |
| name = Pebbly Arkose | image = Pebbly-arkose-kariba.png | caption = Pebbly arkose outcrop, Ndepa hill, Kariba District, Zimbabwe | type = Geological formation | period = Carnian | age = Carnian ~{{fossil range|235|222}} | prilithology = Sandstone | otherlithology = | namedfor = Descriptive name | namedby = A.M. MacGregor, Zimbabwe Geological Survey | coordinates = {{coord|16.2|S|30.3|E|display=inline,title}} | paleocoordinates = {{coord|50.8|S|11.9|E|display=inline}} | region = Mashonaland Central & West | country = {{BOT}} {{ZAM}} {{ZIM}} | unitof = Upper Karoo Group, Karoo Supergroup | underlies = Forest Sandstone | overlies = Escarpment Grit & Angwa Sandstone | map = {{Location map+ | Africa#Zimbabwe | relief = 1 | width = 250 | float = center | places = | lat_deg = -16.2 | lon_deg = 30.3 | mark = Pink ff0080 pog.svg | marksize = 12 }} }} The Pebbly Arkose Formation is a Late Triassic geologic formation found in southern Africa. GeologyDescriptionThe formation comprises mainly coarse, arkosic sandstones.[1] ExtentThe Pebbly Arkose Formation is found in Botswana, Zambia and Zimbabwe, in the Mid-Zambezi, Mana Pools, Cabora Bassa and Limpopo basins. Deposition{{empty section|date=August 2018}}Age{{empty section|date=August 2018}}StratigraphyThe Pebbly Arkose Formation is part of the Upper Karoo Group, overlies the Escarpment formation (in the Mid-Zambezi and Limpopo basins)[2] and the Angwa Sandstone Formation (in the Mana Pools and Cabora Bassa Basins)[3] and underlies the Forest Sandstone Formation.[4] The Pebbly Arkose has been correlated to the Elliot Formation of the Great Karroo Basin, South Africa[4][5] and the Mpandi Formation of the Thuli Basin in Botswana and Zimbabwe.[6] FossilsFlora
Vertebrate fauna
See also{{Portal|Geology|Paleontology|Dinosaurs|Triassic|Prehistory of Africa}}
References1. ^{{cite conference|last=Love|first=David |author2=Ravengai, S. |author3=Katemaunzanga, D. |author4=Shoko, D.S.M. |author5=Kambewa, C. |author6=Matura, N.E.|title=The Karoo sequence in the Nyaminyami area, Zambezi Valley, Zimbabwe|booktitle=Abstract volume, Geoscience Africa Conference|publisher=Geological Society of South Africa|location=Johannesburg, South Africa|date=July 2004|page=135}} 2. ^{{cite journal|doi=10.1016/S0899-5362(01)00090-2|title=Sedimentology of the upper Karoo fluvial strata in the Tuli Basin, South Africa|year=2001|last1=Bordy|first1=Emese M.|last2=Catuneanu|first2=Octavian|journal=Journal of African Earth Sciences|volume=33|issue=3–4|pages=605|bibcode = 2001JAfES..33..605B }} 3. ^{{cite journal|doi=10.1016/S0899-5362(96)00049-8|title=New palynological data from Karoo sediments, Mana Pools basin, northern Zimbabwe|year=1996|last1=d'Engelbronner|first1=E.R.|journal=Journal of African Earth Sciences|volume=23|pages=17|bibcode = 1996JAfES..23...17D }} 4. ^1 {{cite journal|doi=10.1016/S0899-5362(97)00081-X|title=Stratigraphy and palynostratigraphy, Karoo Supergroup (Permian and Triassic), mid-Zambezi Valley, southern Zambia|year=1997|last1=Nyambe|first1=Imasiku A.|last2=Utting|first2=John|journal=Journal of African Earth Sciences|volume=24|issue=4|pages=563|bibcode = 1997JAfES..24..563N }} 5. ^{{cite journal|doi=10.1016/j.jafrearsci.2005.07.007|title=The Karoo basins of south-central Africa|year=2005|last1=Catuneanu|first1=O.|last2=Wopfner|first2=H.|last3=Eriksson|first3=P.G.|last4=Cairncross|first4=B.|last5=Rubidge|first5=B.S.|last6=Smith|first6=R.M.H.|last7=Hancox|first7=P.J.|journal=Journal of African Earth Sciences|volume=43|pages=211|bibcode = 2005JAfES..43..211C }} 6. ^{{cite journal|doi=10.1016/j.jafrearsci.2004.11.004|title=Sedimentology and taphonomy of the upper Karoo-equivalent Mpandi Formation in the Tuli Basin of Zimbabwe, with a new 40Ar/39Ar age for the Tuli basalts|year=2004|last1=Rogers|first1=Raymond R.|last2=Rogers|first2=Kristina Curry|last3=Munyikwa|first3=Darlington|last4=Terry|first4=Rebecca C.|last5=Bradley s.Singer|journal=Journal of African Earth Sciences|volume=40|issue=3–4|pages=147|bibcode = 2004JAfES..40..147R }} 7. ^{{cite journal|doi=10.1016/0031-0182(90)90204-K|title=The Zambezi River: Tectonism, climatic change and drainage evolution|year=1990|last1=Nugent|first1=Chris|journal=Palaeogeography, Palaeoclimatology, Palaeoecology|volume=78|pages=55|bibcode=1990PPP....78...55N}} 8. ^1 {{cite journal|author=Raath, M. A., Oesterlen, P. M., & Kitching, J. W.|year=1992|title=First record of Triassic Rhynchosauria (Reptilia: Diapsida) from the lower Zambezi Valley, Zimbabwe|journal=Palaentologia Africana|volume=29|pages=1–10.}} 9. ^Langer, M.C., Abdala, F., Richter, M., and Benton, M. (1999). "A sauropodomorph dinosaur from the Upper Triassic (Carnian) of southern Brazil" Comptes Rendus de l'Académie des Sciences, 329: 511-;517 Bibliography
8 : Geologic formations of Botswana|Geologic formations of Zambia|Geologic formations of Zimbabwe|Triassic System of Africa|Carnian Stage|Sandstone formations|Alluvial deposits|Paleontology in Zimbabwe |
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