Ankerite
Mostrando 1-3 de 3 artigos, teses e dissertações.
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1. Cimentação carbonática em reservatórios siliciclásticos : o papel da dolomita
Carbonates are important diagenetic cements in siliciclastic rocks thus important to determine these rocks as hydrocarbon reservoirs. The cement is the material had chemically precipitated partial or totally pore filling, affecting rock values of porosity and permeability. The acknowledgment of diagenetic patterns those are associated to the carbonatic cemen
Publicado em: 2010
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2. Padrões diagenéticos em arenitos de sistemas de Sabk ha costeiros-eólicos: um estudo comparativo dos reservatórios Juruá da área de Urucu, Bacia de Solimões, AM
Coastal-eolian sabkha sandstones from different ages and basins show similar diagenetic patterns, which understanding is important for their evaluation as geochemical systems and as hydrocarbon reservoirs. The Carboniferous sandstones of the Juruá Formation (Solimões Basin) are one of the most important gas reservoirs of Brazil. The sandstones and interbed
Publicado em: 2010
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3. Intrusões sub-vulcanicas alcalinas e lamprofiros nas mineralizações auriferas do Greenstone Belt do Rio Itapicuru, Bahia : petrografia, geoquimica e inclusões fluidas
At the Fazenda Maria Preta (FMP) and Mari (MR) gold deposits, in the Rio Itapicuru greenstone belt (RIGB), two host volcanic rocks and a mafic dyke were studied and reclassified. In the Corpo H body (FMP) the host roek is called silicified dacite, but in this worlc, based on the mineralogy and textural ftamework, the roek is reclassified as alkali-feldspar s
Publicado em: 1997