Results 31 to 40 of about 25,106,784 (215)

Palynostratigraphic and palynofacies analysis of x and y wells, offshore Niger Delta, Nigeria

open access: yes, 2021
A detailed palynostratigraphic and palynofacies study was carried out on two shallow offshore wells, codenamed Well X and Well Y, from the Niger Delta Basin, Nigeria.
S. L. Fadiya   +3 more
semanticscholar   +1 more source

Changes in Cave Sedimentation Mechanisms During the Late Quaternary: An Example From the Lower Cerovačka Cave, Croatia

open access: yesFrontiers in Earth Science, 2021
During archeological excavations in the Lower Cerovačka Cave (Mt. Velebit, Croatia), the test trench penetrated to a depth of 1.8 m. An undisturbed sequence of sediments was exposed. Considering that caves represent highly efficient sediment traps it was
Tomislav Kurečić   +10 more
doaj   +1 more source

Application de l'étude de la matière organique à l'analyse de l'érosion : exemple du bassin versant du Moulin, dans les terres noires des Alpes-de-Haute-Provence (France) Determination of eroded geological formations using organic matter characterization (Moulin basin, Alpes-de-Haute-Provence, France). [PDF]

open access: yes, 2000
Laboratoire de géochimie organique, UMR 6531, bât. Géosciences, université d'Orléans, 45067 Orléans, France - Laboratoire intégré à l'ISTO UMR6113 - CNRS - Université d'OrléansCe travail s'appuie sur l'étude de la matière organique présente dans les sols,
Bakyono, Jean-Paul   +5 more
core   +3 more sources

Stratigraphic

open access: yesEgyptian Journal of Petroleum, 2013
The stratigraphic distribution of the palynomorphs and particulate organic matter was studied in the subsurface Lower/Middle Cretaceous sections in Ii-26-1 and Ig-30-1 wells, located in north Western Desert of Egypt.
Sameh S. Tahoun   +2 more
doaj   +1 more source

The prospectivity of a potential shale gas play: An example from the southern Pennine Basin (central England, UK) [PDF]

open access: yes, 2017
During the Serpukhovian (late Mississippian) Stage, the Pennine Basin, now underlying much of northern England, consisted of a series of interlinked sub-basins that developed in response to the crustal extension north of the Hercynic orogenic zone.
Aitkenhead   +96 more
core   +2 more sources

The Assessment of Organic Matter Young's Modulus Distribution With Depositional Environment and Maturity

open access: yesJournal of Geophysical Research: Solid Earth, Volume 125, Issue 12, December 2020., 2020
Abstract Quantification of risk to seal integrity in CCS, or gas extraction from hydraulic fracturing, is directly affected by the accessibility of organic pores within organic rich mudrocks. Knowledge of the host organic matter's mechanical properties, which are influenced by depositional environment and thermal maturity, are required to reduce ...
T. D. Fender   +6 more
wiley   +1 more source

Source rock evaluation of Kharita and Bahariya formations in some wells, North Western Desert, Egypt: Visual palynofacies and organic geochemical approaches

open access: yesEgyptian Journal of Petroleum, 2018
Palynofacies analyses were applied on ninety-one samples from the subsurface Albian – Cenomanian succession represented by Kharita and Bahariya formations, encountered in El-Noor, and South Sallum wells, located in the North Western Desert, Egypt, to ...
Nabil Aboul Ela   +4 more
doaj   +1 more source

Turbidite‐induced re‐oxygenation episodes of the sediment‐water interface in a diverticulum of the Tethys Ocean during the Oceanic Anoxic Event 1a: The French Vocontian Basin

open access: yesThe Depositional Record, Volume 6, Issue 2, Page 352-382, June 2020., 2020
The oceanic anoxic event OAE1a episode has been recorded in the Vocontian Basin (SE‐France) but recurrent reworking (turbidites) altered the record. Abstract Widespread anoxic events affected the Tethys Ocean during the Mesozoic. The Ocean Anoxic Event 1a (Early Aptian), expressed as the Selli Level or Goguel Level (GL) in European basins.
Alexis Caillaud   +10 more
wiley   +1 more source

Paleogene monsoons across India and South China: Drivers of biotic change [PDF]

open access: yes, 2017
Monsoonal climates at low latitudes (2. Fossil leaf form reveals that under such 'hothouse' conditions megathermal early Eocene to earliest Miocene forests were exposed to strong monsoonal climates typical of those experienced today arising from annual ...
Aleksandrova, Galina   +13 more
core   +1 more source

Palynology of the Dalichai Formation in the Guydagh section, southeastern Maragheh, according to dinoflagellate [PDF]

open access: yesJournal of Stratigraphy and Sedimentology Researches, 2018
Introduction The Dalichai Formation is represented by greenish-grey color shales, calcareous shales, marls, and richly ammonitiferous limestones (Steiger, 1966), being widely distributed in the Alborz Mountain, northern Iran.
FRESHTEH SAJJADI   +2 more
doaj   +1 more source

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