2026-07-16T00:50:57Z https://rodare.hzdr.de/oai2d

oai:rodare.hzdr.de:770 2021-02-05T10:12:43Z openaire_data user-rodare

true 3.1 HZDR.RODARE 10.14278/rodare.770 De La Rosa, Roberto 0000-0002-3004-7104 FWGE-HIF Aldana, Milagrosa Departamento de Ciencias de la Tierra, Universidad Simón Bolívar, Caracas, Venezuela Costanzo-Alvarez, Vincenzo Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Canada Yepez, Santiago Departamento de Manejo de Bosques y Medio Ambiente, Universidad de Concepción, Concepción, Chile Amon, Cristina Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Canada Rodare 2021 Satellite remote sensing Spectral images Spectral signature Hydrocarbon seeps Hydrocarbon- induced diagenesis Rock magnetism Weathered sequence Two-Step Cluster Analysis 2021-01-28 https://rodare.hzdr.de/record/770 https://www.hzdr.de/publications/Publ-32253 https://www.hzdr.de/publications/Publ-32187 10.14278/rodare.769 https://rodare.hzdr.de/communities/rodare Closed Access <p>This work integrates satellite image spectral analyses with rock magnetic and geochemical data (i.e., mass-specific magnetic susceptibility &chi;, saturation isothermal remanent magnetization SIRM, analysis of SIRM acquisition curves, absorption spectro-radiometry, and X-ray diffraction analyses). The target area was an oil-prospective region in northwestern Venezuela (Falcon Basin) swarmed by hydrocarbon seeps. The study&#39;s main goal was to depict the spatial extension and vertical reach of the hydrocarbon-mediated alteration produced by these seeps and gain some knowledge about the processes involved in the subsequent mineral changes.</p> <p>The dataset is composed of spreadsheets, compressing field samples data including their locations. Also, a database is presented with data from profiles extracted from the results of multispectral image processing and laboratory data of rock magnetism.&nbsp;</p>