Results 81 to 90 of about 24,581 (234)

The development of magmatism along the Cameroon Volcanic Line: evidence from seismicity and seismic anisotropy [PDF]

open access: yes, 2014
The Cameroon Volcanic Line (CVL) straddles the continent-ocean boundary in West Africa but exhibits no clear age progression. This renders it difficult to explain by traditional plume/plate motion hypotheses; thus, there remains no consensus on the ...
Bastow, I.D.   +5 more
core   +1 more source

Provenance ages of late Paleozoic sandstones (Santa Rosa Formation) from the Maya block, SE Mexico. Implications on the tectonic evolution of western Pangea

open access: yesRevista Mexicana de Ciencias Geológicas, 2018
The Santa Rosa Formation in the State of Chiapas is a sequence of flysch-type sediments of Mississippian to Pennsylvanian age. These sedimentary rocks correlate with the Santa Rosa Group of Guatemala and Belize and crop out along the southern limit of ...
Bodo Weber   +4 more
doaj  

Delineation of structural lineaments of Shaki West Southwestern Nigeria using high resolution aeromagnetic data

open access: yesJournal of Nigerian Society of Physical Sciences
A minor earthquake, known as earth tremor, often occurs in areas prone to seismic activity. However, there is a notable gap in knowledge about earth tremors, with little documentation conducted before 1987, but a series of notable events between 1990 ...
Omonike Adedokun   +8 more
doaj   +1 more source

The development of magmatism along the Cameroon Volcanic Line: Evidence from teleseismic receiver functions

open access: yes, 2012
[1] The Cameroon Volcanic Line (CVL) in West Africa is a chain of Cenozoic volcanism with no clear age progression. The reasons for its existence are unclear, and the nature of its magmatic plumbing system is poorly understood.
Bastow, I.D., Gallacher, R.J.
core   +1 more source

Potential Impacts of Climate Change and Variability on Groundwater Resources in Nigeria [PDF]

open access: yes, 2011
Climate change observed over the past decades has been consistently associated with modifications of components of the hydrological systems such as precipitation patterns, sea surface temperature, accelerated melting of glacier and ice caps, soil ...
Aizebeokhai, A. P.
core   +3 more sources

Potential sources of Ediacaran strata of Iberia: a review [PDF]

open access: yes, 2014
Advances in stratigraphy, geochemistry and U-Pb detrital zircon geochronology from Ediacaran strata of Iberia allow for the improved characterisation of crustal growth in the North Gondwana active margin.
Pereira, M. francisco
core   +1 more source

Petrology of the Pan-African high-K alkali-calcic Bocaranga plutonic complex in the Adamawa-Yadé domain (Central African Republic): Nature, origin and contribution to geodynamic reconstruction of the Central African fold belt

open access: yesSolid Earth Sciences
The Bocaranga plutonic complex belongs to the northwestern extension Adamawa-Yadé Domain of the Central African Fold Belt (CAFB) in the Central African Republic (CAR).
Rodrigue Martial Topien   +4 more
doaj   +1 more source

Wilson cycle studies [PDF]

open access: yes
Effort was concentrated in problems of continental evolution and a presentation was made to a workshop on the Deep Continental Growth of South India. An interpretation of the lithospheric structure of Africa as related to continental collision (together ...
Burke, Kevin
core   +1 more source

Geochemistry of podiform chromitite and host rocks within the Buem Structural Unit, Northwestern Benin Republic: Implications for the geodynamic evolution of the Dahomeyide orogenic belt

open access: yesResults in Earth Sciences
The paper presents the geochemistry, origin and geodynamic setting of podiform chromitite and host rocks from the Buem Structural Unit (BSU) in the northwestern Benin Republic.
Daniel N. Kouagou N’Dah   +7 more
doaj   +1 more source

The metasedimentary Macururé Complex (Sergipano Belt, Borborema Province, Brazil) in southern Alagoas state: geology and geochronology

open access: yesJournal of the Geological Survey of Brazil, 2019
The Sergipano Belt is part of the Southern Subprovince of the Borborema Province (NE Brazil) and separates the Pernambuco-Alagoas Domain from the São Francisco Craton. The Macururé Domain is the largest unit of the Sergipano Belt and comprises a basement
Sergio Pacheco Neves   +2 more
doaj   +1 more source

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