Results 151 to 160 of about 2,249 (210)

Petrographic and geochemical study of Precambrian and Paleozoic rocks in the western Anti-Atlas belt, Morocco: Facies, weathering, provenance and economic exploitation. [PDF]

Heliyon
Sebbab MM, Ousbih M, En-Nasiry M, El Ouahidi A, Abdelrahman K, El Atillah A, Uddin MG, Ekoa Bessa AZ, Fnais MS, Olbert AI, Abioui M.   +10 more
europepmc   +1 more source

Physicochemical characterization and industrial use of Awzet Kaolin deposit in Northwestern Ethiopian plateau. [PDF]

Sci Rep
Ali MY, Meshesha D.
europepmc   +1 more source

Millennial pulses of African dust and ITCZ shifts in the Eastern Equatorial Pacific. [PDF]

Nat Commun
Schimmenti DE, Marcantonio F, Roxana Sierra-Hernández M, Schmidt MW.   +3 more
europepmc   +1 more source

An assessment of the environmental radiation risk from the petrologic units of north-eastern Nigeria; an insight from aero-radiometric data interpretation. [PDF]

Heliyon
Yusuf A, San LH, Mohammed MA, Bute IS, Olasehinde A, Mohammed AG, Kwami IA, Bello AM, Usman MB, Sulaiman MB, Dalha A, Abubakar U, Mukkafa S, Barka J, Mboringong MN.   +14 more
europepmc   +1 more source

PDCD-DAT - a global database of pyroclastic density current deposit field data. [PDF]

J Appl Volcanol
Brown J, Williams R, Ogburn S, Brand B, Breard ECP, Charbonnier S, Dowey N, Dufek J, Jellinek M, Kueppers U, Lube G, Rowley P.   +11 more
europepmc   +1 more source

Magnetostratigraphic constraints on the late Ediacaran paleomagnetic enigma. [PDF]

Sci Adv
Pierce JS, Evans DAD, Polomski DE, Youbi N, Mediany MA, Ounar J, Oukhro R, Boumehdi MA, Strauss JV, Keller CB, Gärtner A, Ovtcharova M, Wotzlaw JF, Linnemann U.   +13 more
europepmc   +1 more source

Lithological discrimination based on Landsat-9 OLI sensor and field observation data: The bana an-orogenic volcano-plutonic ring complex, West Cameroon line. [PDF]

Heliyon
Mohamed R, Tamen J, Ousmanou S, Yangouo FK, Nkouathio D.   +4 more
europepmc   +1 more source

Classification of ignimbrites and their eruptions

Earth-Science Reviews, 2021
Abstract The term “ignimbrite” probably encompasses the one of the largest ranges of deposit types on Earth, associated with the partial to total collapse of explosive eruption columns feeding pyroclastic density currents. Surprisingly, there is no quantified classification scheme for ignimbrite types, as there is for fallout deposits, and this is a ...
Guido Giordano, R A F Cas
exaly   +8 more sources

Late Miocene ignimbrites at the southern Puna–northern Sierras Pampeanas border (∼27°S): Stratigraphic correlation [PDF]

Journal of South American Earth Sciences, 2015
New field observations and petrographic and geochemical data of pyroclastic deposits exposed along the Las Papas valley (border between southern Puna and northern Sierras Pampeanas, Argentina) and further north, lead us to propose a new stratigraphic ...
Carolina Montero-Lopez, Silvina Guzman
exaly   +2 more sources

Ignimbrites of the Roque Nublo group, Gran Canaria, Canary Islands

Bulletin of Volcanology, 1997
Non-welded, lithic-rich ignimbrites, hereintermed the Roque Nublo ignimbrites, are the most distinctive deposits of the Pliocene Roque Nublo group, which forms the products of second magmatic cycle on Gran Canaria. They are very heterogeneous, with 35–55%
FRANCISCO J Pérez-Torrado, Joan Marti, Marti J   +2 more
exaly   +2 more sources