Results 21 to 30 of about 276 (181)

BACTERIAL COLONIES AND MANGANESE MICRONODULES RELATED TO FLUID ESCAPE ON THE CREST OF THE MEDITERRANEAN RIDGE

Rivista Italiana di Paleontologia e Stratigrafia, 2018
A black, few centimeters thick Marker-bed of Holocene age is consistently recorded in all the deep-sea cores raised from two fields of mud diapirs recently discovered on the crest of the Mediterranean Ridge south of Crete.
MARIA BIANCA CITA, FULVIA S. AGHIB, SILVIA AROSIO, ELEONORA FOLCO, LAMBERTO SARTO, ELISABETTA ERBA, AGOSTINO RIZZI   +6 more
doaj   +1 more source

Seismic Sequence Stratigraphy Applied to Reservoir Recognition and Evolution on Marine Carbonatic Ramp—Macaé Group (Albian to Cenomanian) of Campos Basin

Geological Journal, EarlyView.
A classic oil producing interval of the Campos Basin—Macaé Group is revisited through seismic stratigraphic analysis, providing a stratigraphic framework, characteristic depositional and relative time positioning for several complex structural settings.
Renata Alvarenga, Juliano Kuchle, Francyne Amarante, Garibaldi Armelenti, Claiton Marlon dos Santos Scherer, Luiz Fernando De Ros, Bruno de Souza Silva, Igor Marzano, Márcia Karam, Candy Shirley Rosa Contreras, João Claudio Conceição, José Luis Drummond Alves, Luiz Landau   +12 more
wiley   +1 more source

The Unexpected Discovery of Paleocene? Coals in Outcrops Thought to Be Cambrian, Al Huqf, Oman

Journal of Petroleum Geology, EarlyView.
ABSTRACT Two brown organic deposits were encountered whilst investigating kaolinitic claystones thought to occur at the base of a Cambrian formation at outcrop. The age of these organic deposits is probably Paleocene from palynology. Organic petrography shows that they are subbituminous coals with some oil source potential.
Mohammed H. Al Kindi, Alan P. Heward, Lorraine B. Eglinton, Steve R. Packer, Darrin T. Stead   +4 more
wiley   +1 more source

Isotope-geochemical heterogeneity of pliocene-quaternary volcanics from kamchatka and the asthenospheric diapirism problem

Вестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, 2020
Isotope-geochemical material for Pliocene-Quaternary volcanoes of the Kamchatka region is generalized on a cartographic basis. The Sr-isotope anomalies of moderate and elevated radiogenicity, geochemically confirmed, are spatially conjugated.
Колосков А.В.
doaj   +1 more source

Infra-supra structure relations of a microcline-granite dome in the Somero area, Svecofennides, SW Finland [PDF]

Bulletin of the Geological Society of Finland, 1989
Internal structure and deformational history of two granite domains with markedly distinct tectono-metamorphic evolutions occur in the Somero area, SW Finland.
H. Stel, R. Veenhof, J.M. Huizenga, M. Timmerman, J.M.H. Hartsink   +4 more
doaj   +1 more source

Evolution, Routing and Reservoir Characteristics of Submarine Channels in a Structurally Deforming Slope Setting: Deep‐Water Joint Development Zone of Nigeria and São Tomé and Príncipe

Journal of Petroleum Geology, EarlyView.
ABSTRACT Deep‐water slope channels and associated facies are a major part of clastic sediment dispersal system extending from the shelf‐edge to the abyssal plain. The toe‐thrust area of the deep‐water Niger Delta enables the analysis of these channels and their interaction with evolving fault‐controlled sea‐floor topography to be determined ...
Stanley Ang, Mike Mayall, Lidia Lonergan
wiley   +1 more source

THE PROBLEM OF THE GENESIS OF PALEOPROTEROZOIC PRIMARY CLAY INJECTIONS, EXTRUSIONS AND DIAPIRS

Transactions of the Karelian Research Centre of the Russian Academy of Sciences, 2016
An analytical review of recent papers on the themes “Fluidolites”, “Clay diapirism”, “Clay injection and extrusion” is offered. These phenomena correspond fundamentally to fluid displacement (water, gas, clay and organic matter), whereas massive ...
Михаил Михайлович Филиппов, Mikhail Filippov   +1 more
doaj   +1 more source

Feldspar Albitization With Implications for Reservoir Quality Evolution of Eocene Turbidite Sandstones in Offshore Espírito Santo Basin, Eastern Brazil

Journal of Petroleum Geology, EarlyView.
ABSTRACT The diagenetic albitization of plagioclase and K‐feldspar grains is a transformative process that significantly alters sandstone's detrital composition and formation water chemistry, impacting reservoir quality. In this study, Eocene turbidite sandstones from the offshore Espírito Santo Basin, Brazil, were investigated to elucidate the role of
Eveline E. Zambonato, Luiz F. De Ros, Howri Mansurbeg   +2 more
wiley   +1 more source

Intraslope Basin, Seismic Facies and Sedimentary Processes in the Kaoping Slope, Offshore Southwestern Taiwan

Terrestrial, Atmospheric and Oceanic Sciences, 2006
Occurrence of intraslope basins and distinct seismic faices assemblages of the basin fills in the Kaoping Slope, offshore SW Taiwan, reflect interactions between regional convergent tectonics, local mud diapirism and sedimentary processes of fill-and ...
Ho-Shing Yu Zehn-Yin Huang
doaj   +1 more source

Diapirs and their role in the localization of mineralization

International Geology Review, 1976
In the local and foreign literature on the structures of ore fields and deposits, there are very rarely examples of localization, of endogenic ores in diapiric structures. However, the role of the latter as ore-enclosing structures is, in our opinion, more significant than has been accepted at the present time. We are convinced of this from appropriate
Kushnarev I.P., Druzhinin A.V.
openaire   +3 more sources