Results 61 to 70 of about 2,919 (184)

Malignant melanoma of the urethra: a rare histologic subdivision of vulvar cancer with a poor prognosis [PDF]

open access: yes, 2012
Malignant melanoma of the urethra is a rare tumour that is difficult to diagnose and treat, resulting in a poor prognosis. In this paper, we present the case of a 65-year-old woman who was referred to a gynaecologist because of a urethral mass that ...
Alkatout, Ibrahim   +8 more
core   +2 more sources

JURASSIC ORGANIC-WALLED MARINE MICROPLANKTON FROM THE NEUQUÉN BASIN. DISTRIBUTION, BIOSTRATIGRAPHY AND PALEOBIOGEOGRAPHY. A REVIEW

open access: yesPublicación Electrónica de la Asociación Paleontológica Argentina, 2016
. The Mesozoic Era is crucial for analyzing the replacement of microplanktonic lineages resulting from the beginning of the break-up of Pangea. The paleogeography of South America, and hence of Argentina, underwent successive changes since this time. The
Marcelo A. Martínez, Daniela E. Olivera
doaj  

KEROGEN CHARACTERIZATION OF THE VACA MUERTA FORMATION (TITHONIAN–VALANGINIAN), AT MALLÍN QUEMADO AND PUERTA CURACO, NEUQUÉN BASIN, CENTRAL-WEST PATAGONIA, ARGENTINA. PALYNOFACIES AND GEOCHEMICAL APPROACH

open access: yesPublicación Electrónica de la Asociación Paleontológica Argentina
This contribution integrates palynofacies, organic geochemical and sedimentological analyses to characterize the depositional environment and the kerogen properties related to the hydrocarbon source potential of the Vaca Muerta Formation at the Mallín ...
Luis Sebastián Agüero   +3 more
doaj   +1 more source

Energy Resource Transportation Governance: Case Studies of The Alberta Oil Sands and The Argentinian Vaca Muerta Shale Oil Fields [PDF]

open access: yes, 2015
In recent years, there has been increasing focus on the economic and other benefits of the development of “unconventional” sources of oil—resources that cannot be produced using traditional production techniques—partly due to the increased scarcity of ...
Agosta, Bruno   +2 more
core  

Enclaves in the Mt.Padbury and Vaca Muerta mesosiderites: Magmatic and residue (or cumulate) rock types [PDF]

open access: yes, 1990
Nine eucritic enclaves from mesosiderites and one possible enclave were petrologically and chemically studied. Three are from Mt. Padbury, six from Vaca Muerta, and one eucritic meteorite (AMNH 4627) was found in northern Chile and may be an enclave from
Martin Prinz   +2 more
core   +1 more source

The Jurassic/Cretaceous boundary and high resolution biostratigraphy of the pelagic sequences of the kurovice section (Outer Western Carpathians, the northern Tethyan margin) [PDF]

open access: yes, 2019
Microfacies and high resolution studies at the Kurovice quarry (Czech Republic, Outer Western Carpathians) on calpionellids, calcareous and non-calcareous dinoflagellate cysts, sporomorphs and calcareous nannofossils, aligned with paleomagnetism, allow ...
Elbra, Tiiu   +6 more
core   +1 more source

Issue Information

open access: yes
Meteoritics &Planetary Science, Volume 60, Issue 5, Page 975-978, May 2025.
wiley   +2 more sources

Global review on shale: Focus on hydrocarbon geoscience & carbon sequestration

open access: yesResults in Earth Sciences
Shale gas is a potential unconventional resource meeting the challenges of the energy crisis. Among the 195 countries of the world, 52 countries contain 108 established shale basins and 156 shale formations for commercial shale oil and gas exploration ...
Ankita Paul   +2 more
doaj   +1 more source

Did Mesosiderites See the FU Orionis Outbursts of the Solar Nebula? [PDF]

open access: yes, 2016
第3回極域科学シンポジウム/第35回南極隕石シンポジウム 11月29日(木) 国立国語研究所 ...
Sugiura N.
core   +1 more source

Late Cenozoic contractional evolution of the current arc-volcanic region along the southern Central Andes (35°20′S) [PDF]

open access: yes, 2015
The Andean internal zone records deformation, uplift and erosion that serve as proxies of variations on mountain building dynamics. Hence, the study of this region would give keys to understand the factors controlling the orogenic evolution.
Farías, Marcelo   +3 more
core   +1 more source

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