Articles with "northwest africa" as a keyword



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Petrography and chronology of lunar meteorite Northwest Africa 6950

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Published in 2020 at "Science China Information Sciences"

DOI: 10.1007/s11432-019-2809-3

Abstract: Northwest Africa (NWA) 6950 is an olivine-gabbro lunar meteorite that has a distinctly different petrographic texture from other lunar basalts. In this contribution, we report the petrography, mineralogy, and U-Pb geochronology of baddeleyite and phosphate… read more here.

Keywords: northwest africa; lunar meteorite; nwa 773; nwa 6950 ... See more keywords

Petrogenesis and Provenance of Ungrouped Achondrite Northwest Africa 7325 from Petrology, Trace Elements, Oxygen, Chromium and Titanium Isotopes, and Mid-IR Spectroscopy.

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Published in 2017 at "Geochimica et cosmochimica acta"

DOI: 10.1016/j.gca.2016.12.021

Abstract: Northwest Africa (NWA) 7325 is an ungrouped achondrite that has recently been recognized as a sample of ancient differentiated crust from either Mercury or a previously unknown asteroid. In this work we augment data from… read more here.

Keywords: petrology; mineralogy; northwest africa; trace ... See more keywords

Origin and implications of troilite-orthopyroxene intergrowths in the brecciated diogenite Northwest Africa 7183

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Published in 2018 at "Geochimica et Cosmochimica Acta"

DOI: 10.1016/j.gca.2017.09.051

Abstract: Abstract Troilite-orthopyroxene intergrowths are present as a common material in the brecciated diogenite Northwest Africa (NWA) 7183. In this study, we report on the petrographic, mineralogical, and rare earth element abundances of the troilite-orthopyroxene intergrowths… read more here.

Keywords: northwest africa; troilite orthopyroxene; diogenite northwest; orthopyroxene intergrowths ... See more keywords

Morphology, age and sediment dynamics of the upper headwall of the Sahara Slide Complex, Northwest Africa: Evidence for a large Late Holocene failure

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Published in 2017 at "Marine Geology"

DOI: 10.1016/j.margeo.2016.11.013

Abstract: The Sahara Slide Complex in Northwest Africa is a giant submarine landslide with an estimated run-out length of ~ 900 km. We present newly acquired high-resolution multibeam bathymetry, sidescan sonar, and sub-bottom profiler data to… read more here.

Keywords: northwest africa; slide complex; slide; sahara slide ... See more keywords

Shergottite Northwest Africa 6963: A Pyroxene‐Cumulate Martian Gabbro

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Published in 2018 at "Journal of Geophysical Research"

DOI: 10.1029/2018je005635

Abstract: Northwest Africa (NWA) 6963 was found in Guelmim-Es-Semara, Morocco, and based on its bulk chemistry and oxygen isotopes, it was classified as a Martian meteorite. On the basis of a preliminary study of the textures… read more here.

Keywords: northwest africa; nwa 6963; mineralogy; cumulate ... See more keywords

The Canary Islands, an Imperial Frontier: Decolonial Thought in South-South Relations in Northwest Africa

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Published in 2024 at "Geopolitics"

DOI: 10.1080/14650045.2024.2418581

Abstract: ABSTRACT The Canary Islands have been denied their Africanness throughout history. This has served to legitimise the problematic role of the archipelago as West’s imperial frontier in Northwest Africa. Through agenealogy of the available literature… read more here.

Keywords: south south; decolonial thought; imperial frontier; canary islands ... See more keywords