Overview of the morphology and chemistry of diagenetic features in the clay‐rich Glen Torridon unit of Gale crater, Mars

PJ Gasda, J Comellas, A Essunfeld… - Journal of …, 2022 - Wiley Online Library
Abstract The clay‐rich Glen Torridon region of Gale crater, Mars, was explored between sols
2300 and 3007. Here, we analyzed the diagenetic features observed by Curiosity, including …

Co-Ni-arsenide mineralisation in the Bou Azzer district (Anti-Atlas, Morocco): Genetic model and tectonic implications

E Tourneur, A Chauvet, K Kouzmanov, J Tuduri… - Ore Geology …, 2021 - Elsevier
The two main types of mineralisation in the Co-Ni-As Bou Azzer district, ie,“contact”
mineralisation” and “cross-cutting” structures have been re-defined based on new field …

[HTML][HTML] The chromitites of the neoproterozoic Bou Azzer ophiolite (central Anti-Atlas, Morocco) revisited

N Pujol-Solà, D Domínguez-Carretero, JA Proenza… - Ore Geology …, 2021 - Elsevier
Abstract The Neoproterozoic Bou Azzer ophiolite in the Moroccan Anti-Atlas Panafrican belt
hosts numerous chromitite orebodies within the peridotite section of the oceanic mantle. The …

The Moroccan Anti-Atlas ophiolites: Timing and melting processes in an intra-oceanic arc-back-arc environment

F Hodel, A Triantafyllou, J Berger, M Macouin… - Gondwana …, 2020 - Elsevier
Abstract The Moroccan Anti-Atlas orogenic belt encloses several Precambrian inliers
comprising two major Neoproterozoic ophiolitic complexes: the Sirwa and Bou Azzer …

Mineralogy and paragenesis of the Co-Ni arsenide ores of Bou Azzer, Anti-Atlas, Morocco

AH Ahmed, S Arai, M Ikenne - Economic Geology, 2009 - pubs.geoscienceworld.org
Abstract The Co-Ni arsenide ore deposits at Bou Azzer, Morocco, represent an uncommon
type of Co mineralization. Several Co-Ni-As-Au-Ag mines are active in Bou Azzer and …

Geochemistry of Khor Um-Safi ophiolitic serpentinites, central Eastern desert, Egypt: Implications for neoproterozoic arc-basin system in the Arabian-Nubian shield

S Ali, T Ntaflos, M Sami - Geochemistry, 2021 - Elsevier
Abstract Serpentinites in the Eastern Desert of Egypt are the most distinctive lithological unit
in the Arabian–Nubian Shield (ANS) ophiolite sequence which associated with major suture …

Unusual massive magnetite veins and highly altered Cr-spinels as relics of a Cl-rich acidic hydrothermal event in Neoproterozoic serpentinites (Bou Azzer ophiolite …

F Hodel, M Macouin, A Triantafyllou, J Carlut… - Precambrian …, 2017 - Elsevier
If magnetite is a common serpentinization product, centimetric, massive and pure magnetite
veins are rarely observed in serpentinites. Unique example, in the Aït Ahmane ultramafic …

Low-T formation of high-Cr spinel with apparently primary chemical characteristics within podiform chromitite from Rayat, northeastern Iraq

S Arai, Y Shimizu, SA Ismail, AH Ahmed - Mineralogical Magazine, 2006 - cambridge.org
Chemical modification of chromian spinel at low-T alteration was examined in detail for a
podiform chromitite from a Tethyan ophiolitic mélange belt at Rayat, northeastern Iraq. The …

The Bou Azzer Co–Ni–Fe–As (±Au±Ag) district of Central Anti-Atlas (Morocco): A long-lived late Hercynian to Triassic magmatic-hydrothermal to low-sulphidation …

M Bouabdellah, L Maacha, G Levresse… - Mineral deposits of north …, 2016 - Springer
Abstract The Neoproterozoic Bou Azzer Co–Ni–Fe–As (±Au±Ag) district in the Central Anti-
Atlas Mountains of southern Morocco hosts the only mine in the world where Co is produced …

Fossil black smoker yields oxygen isotopic composition of Neoproterozoic seawater

F Hodel, M Macouin, RIF Trindade… - Nature …, 2018 - nature.com
The evolution of the seawater oxygen isotopic composition (δ18O) through geological time
remains controversial. Yet, the past δ18Oseawater is key to assess past seawater …