Pre-to-syn-rift tholeiitic magmatism in a transtensive hyperextended continental margin: Onshore and offshore magmatism of the Campos Basin, SE Brazil

Autor:	Julio Cesar Horta de Almeida, Henrique Bruno, João Paulo Giro, Martin B. Klausen, Bernroider Manfred, Wolfram Tetzner, Eliane Guedes, Monica Heilbron, Michael McMaster, Claudio de Morisson Valeriano, Franz Neubauer
Rok vydání:	2021
Předmět:	010506 paleontology Rift Geochemistry Geology 010502 geochemistry & geophysics 01 natural sciences Mantle (geology) Petrography Tectonics Gondwana Basement (geology) Continental margin Magmatism 0105 earth and related environmental sciences Earth-Surface Processes
Zdroj:	Journal of South American Earth Sciences. 108:103218
ISSN:	0895-9811
DOI:	10.1016/j.jsames.2021.103218
Popis:	The wide range of geochemical and isotopic signatures of dyke swarms are essential for defining tectonic settings and isotopic reservoirs, as they represent windows into the Earth's mantle. The Early-Cretaceous Buzios-Cabo Frio dyke swarm (BCFDS) represents the easternmost pre-rift magmatism within the Campos Basin's onshore basement. This magmatism is associated with the break-up of Gondwana and subsequent opening of the South Atlantic Ocean. Whole-rock geochemistry, mineral chemistry and petrography suggest an FC evolutionary process for this low-TiO2 (
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c1677d77040df4d198e6efc7e4108dcc https://doi.org/10.1016/j.jsames.2021.103218 Zobrazit plný text záznamu Full Text from ScienceDirect