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New evidence concerning the thermal history of Devonian and Carboniferous rocks...

Maturação Orgânica da Bacia Mesozóica Algarvia (Sul de Portugal): implicações p...

A Bacia Algarvia (BA) situa-se no sul de Portugale apresenta uma direção principal E - O estando a sua parte emersa representada ao longo da costa, desde o Cabo de São Vicente até ao rio Guadiana, estendendo-se também para o offshore.

Palynology of the kingscourt outlier (Ireland)

The Kingscourt Outlier occupies a roughly triangular area on the southern part of the Lower Palaeozoic Longford–Down Massif in eastern Ireland. It comprises a condensed succession of sedimentary rocks that record the onset of fluvio‐deltaic sedimentation across eastern Ireland during Late Viséan to Late Bashkirian (Jackson, 1955, 1965). The outlier forms a syncline structure with an axis orientated approximatel...

The thermal history of the Mesozoic Algarve Basin (South Portugal) and its impl...

The Algarve Basin is the southernmost geological province of mainland Portugal, outcropping along the entire south coast area and extending offshore, where it is recognised on seismic lines and in hydrocarbon exploration wells. It mainly comprises Jurassic and Lower Cretaceous limestones and marls making a succession over 3 km thick. This sedimentary basin belongs to a series of basins that were initiated by ri...

The thermal history and hydrocarbon source rock potential of the mid Carbonifer...

The mid Carboniferous Quebradas Formation of the ‘South Portuguese Zone’ (SPZ) comprises 80m of post-mature black mudrocks with a mean TOC of 2.5%. Lithostratigraphic units of similar facies and age such as the Holywell Shale, the Edale Shale and the Bowland Shale are important HC source rocks in the UK, having sourced a considerable proportion of the hydrocarbons in the East Irish Sea, East Midlands and Formby...

Organic maturation levels and thermal history of the Carboniferous rocks of the...

The Dublin Basin sucession comprises sediments in age from Mississippian (Courceyan) to Pennsylvanian (Langsettian). The Viséan part of. the succession is dominated by turbiditic calcarenites interbedded with grey-black shales. Namurian and earliest Westphalian rocks preserved in the Kingscourt Outlier in the north of the basin are dominated by sandstones interbedded with silstones and shales.

Poder reflector da vitrinite, mineralogia das argilas e cristalinidade da ilite...

O Poder Reflector Aleatório da Vitrinite (PRAV) na Zona Sul Portuguesa (ZST) varia entre 2,1% e 5,3%. O PRAV não aumenta com o aumento da idade estratigráfica e o processo de maturação é portanto, considerado como pós-deformação (pós-Vestefaliano D inferior). Amostras do Triásico e do Jurássico do Outlier da Carrapateira têm PRAV de 1,1% e 0,9% respectivamente. Isto implica que temperaturas máximas relacionadas...