Geochemistry of sandstones from the Upper Miocene Kudankulam Formation, southern India: implications for provenance, weathering, and tectonic setting

JS Armstrong-Altrin, YI Lee… - Journal of …, 2004 - pubs.geoscienceworld.org
Petrographic, major, trace, and rare earth element compositions of sandstones from the
upper Miocene Kudankulam Formation, Southern India, have been investigated to …

Geochemistry of beach sands along the western Gulf of Mexico, Mexico: implication for provenance

JS Armstrong-Altrin, YI Lee, JJ Kasper-Zubillaga… - Geochemistry, 2012 - Elsevier
This paper contributes to understanding the intractable problems in provenance study due to
hydraulic sorting and geochemical heterogeneity in medium, fine, and very fine sands. For …

Tectonic discrimination of basic and ultrabasic volcanic rocks through log-transformed ratios of immobile trace elements

S Agrawal, M Guevara, SP Verma - International Geology Review, 2008 - Taylor & Francis
Most of the existing major-and trace element-based discrimination diagrams are
characterized by major defects such as subjective field boundaries, the constant-sum …

Provenance of sands from cazones, acapulco, and bahía kino beaches, México

JS Armstrong-Altrin - Revista mexicana de ciencias geológicas, 2009 - scielo.org.mx
Petrographic, major, trace, and rare-earth element geochemistry of sands from three
beaches of México (Cazones, Acapulco, and Bahía Kino) were studied to determine their …

[HTML][HTML] New tectonic discrimination diagrams for basic and ultrabasic volcanic rocks through log-transformed ratios of high field strength elements and implications for …

SP Verma, S Agrawal - Revista mexicana de ciencias geológicas, 2011 - scielo.org.mx
The statistically correct handling of compositional data requires log–ratio transformation
whereas the multivariate technique of linear discriminant analysis (LDA) assumes a normal …

Petrogenesis of Neoarchean (2.80–2.75 Ga) Jagannathpur volcanics and the Ghatgaon and Keshargaria dyke swarms, Singhbhum craton, eastern India …

A Adhikari, A Nandi, S Mukherjee, R Vadlamani - Lithos, 2021 - Elsevier
Petrogenesis of Neoarchean dyke swarms and dispersed volcanic successions in the
Singhbhum craton can potentially constrain mantle heterogeneity. Their arc-like trace …

First 15 probability-based multidimensional tectonic discrimination diagrams for intermediate magmas and their robustness against postemplacement compositional …

SPAL VERMA, SK Verma - Turkish Journal of Earth Sciences, 2013 - journals.tubitak.gov.tr
Although for ultrabasic and basic magmas a plethora of tectonomagmatic diagrams have
been used, with the exception of one bivariate diagram for refined tectonic setting of …

[PDF][PDF] Present state of knowledge and new geochemical constraints on the central part of the Mexican Volcanic Belt and comparison with the Central American …

SPAL VERMA - Turkish Journal of Earth Sciences, 2015 - journals.tubitak.gov.tr
A brief critical review is presented of the geological, geophysical, geochemical, and plate
tectonic evidence for the origin and evolution of the central part of the Mexican Volcanic Belt …

Extension-related origin of magmas from a garnet-bearing source in the Los Tuxtlas volcanic field, Mexico

SP Verma - International Journal of Earth Sciences, 2006 - Springer
Abstract The Los Tuxtlas volcanic field (LTVF) of late Miocene to Recent age is a key area to
understand the consequences of the current subduction of the Cocos plate beneath the …

Geology and geochronology of Cerros San Juan formation (department of Colonia, Uruguay), Río de la Plata Craton

LS Bettucci, H Bonjour, JL Olivet, E Peel… - Journal of South …, 2023 - Elsevier
Abstract The Cerros San Juan Formation is located in the southwest of the Colonia
Department, in Uruguay. It is represented by a metavolcanosedimentary sequence in green …