Results 71 to 80 of about 32,561 (204)

Assessing Origins of End‐Triassic Tholeiites From Eastern North America Using Hafnium Isotopes

Geochemistry, Geophysics, Geosystems, 2020
The driving processes responsible for producing the Central Atlantic Magmatic Province, the Large Igneous Province associated with end‐Triassic rifting of Pangea, remain largely debated.
Lynne J. Elkins, Christine M. Meyzen, Sara Callegaro, Andrea Marzoli, Michael Bizimis   +4 more
doaj   +1 more source

The Pelona-Pico Duarte basalts Formation, Central Hispaniola: an on-land section of Late Cretaceous volcanism related to the Caribbean large igneous province

Geologica Acta, 2011
Located in Central Hispaniola, the Pelona-Pico Duarte basalts Formation (Fm.) offers an opportunity to study the Late Cretaceous Caribbean large igneous province magmatism on land. It is composed by a ~2.5km-thick pile of massive and monotonous submarine
J. ESCUDER VIRUETE, A. PÉREZ-ESTAÚN, M. JOUBERT, D. WEIS   +3 more
doaj  

Physical volcanology and emplacement mechanism of the Central Atlantic Magmatic Province (CAMP) lava flows from the Central High Atlas, Morocco

Comptes Rendus. Géoscience, 2020
The best preserved and most complete lava flow sequences of the Central Atlantic Magmatic Province (CAMP) in Morocco are exposed in the Central High Atlas and can reach up to 300 m in thickness.
El Hachimi, Hind, Youbi, Nasrrddine, Madeira, José, Marzoli, Andrea, Mata, João, Bertrand, Hervé, Bensalah, Mohamed Khalil, Boumehdi, Moulay Ahmed, Doblas, Miguel, Medina, Fida, Ben Abbou, Mohamed, Martins, Línia   +11 more
doaj   +1 more source

Reconstruction of drainage evolution in a Large Igneous Province : Intra-basaltic sedimentation in the Columbia River Basalt Province, Washington State, USA [PDF]

, 2013
Peer ...
Ebinghaus, Alena, Hartley, Adrian John, Hole, Malcolm John, Jolley, David William, Millett, John   +4 more
core  

Weathering of the Ethiopian volcanic province: a new weathering index to characterize and compare soils [PDF]

, 2015
© Walter de Gruyter Berlin/Boston 2015.Soil formation occurs through numerous physical and chemical weathering processes acting to alter the parent rock on the Earths surface.
Baxter, PJ, Berhanu, T, Cuadros, J, Davey, G, Le Blond, JS, Molla, YB, Umer, M   +6 more
core   +1 more source

Large Igneous Provinces and Their Mafic-Ultramafic Intrusions

IOP Conference Series: Earth and Environmental Science, 2017
Here we provide an overview of the range of settings for mafic-ultramafic layered intrusions as part of the plumbing system of Large Igneous Provinces, and address the metallogenic implications.
Jowitt, S. M., Blanchard, J. A., Liikane, D. A., Ernst, Richard E.   +3 more
openaire   +2 more sources

Pegmatites of Southern California [PDF]

, 1954
For many years the southern California region has attracted the attention of geologists interested in pegmatites and pegmatite deposits, largely because of the well-known gem and lithium occurrences in San Diego and Riverside Counties. These world-famous
Jahns, Richard H.
core  

A mantle plume origin for the Palaeoproterozoic Circum-Superior Large Igneous Province [PDF]

, 2017
The Circum-Superior Large Igneous Province (LIP) consists predominantly of ultramafic-mafic lavas and sills with minor felsic components, distributed as various segments along the margins of the Superior Province craton.
Baragar, B., Ciborowski, Jake, Ernst, R.E., Kerr, Andrew Craig, Minifie, M J   +4 more
core   +1 more source

No Cretaceous‐Paleogene Boundary in Exposed Rajahmundry Traps: A Refined Chronology of the Longest Deccan Lava Flows From 40Ar/39Ar Dates, Magnetostratigraphy, and Biostratigraphy

Geochemistry, Geophysics, Geosystems, 2020
Deccan Traps flood basalt volcanism affected ecosystems spanning the end‐Cretaceous mass extinction, with the most significant environmental effects hypothesized to be a consequence of the largest eruptions.
Isabel M. Fendley, Courtney J. Sprain, Paul R. Renne, Ignacio Arenillas, José A. Arz, Vicente Gilabert, Stephen Self, Loÿc Vanderkluysen, Kanchan Pande, Jan Smit, Tushar Mittal   +10 more
doaj   +1 more source

Volcanic succession and feeder systems of acidic lava-domes of Serra Geral Formation in São Marcos-Antônio Prado region, South Brazil [PDF]

Geologia USP. Série Científica, 2012
In the São Marcos (RS) and Antonio Prado (RS), the Serra Geral Formation exposes at the base basalts of pahoehoe type, coveredby basalts of the ´a´ā type.
Evandro Fernandes de Lima, Ruy Paulo Philipp, Gabriela Cioato Rizzon, Breno Leitão Waichel, Lucas de Magalhães May Rossetti   +4 more
doaj