Results 51 to 60 of about 365,863 (321)

MicroCT reinvestigation of the only articulated fossil anostomid fish reveals synonymy of Arhinolemur Ameghino, 1898 and Megaleporinus Ramirez et al., 2017

The Anatomical Record, EarlyView.
Abstract Arhinolemur scalabrinii† Ameghino, 1898 was originally described as a strepsirrhine primate (Mammalia) but has been recognized as an anostomid fish since 2012. It remains the only extinct anostomid species known from complete cranial material.
Karen M. Panzeri, Humberto L. Andrelino, Sergio Bogan, José P. O'Gorman, Federico Agnolín, Brian L. Sidlauskas, Nahuel Vega, Agustín G. Martinelli, José L. Birindelli   +8 more
wiley   +1 more source

Log-based identification of sedimentary facies in coal measures in the southern Wuxiang block, Shanxi Province, China

Meitian dizhi yu kantan
ObjectiveThe Carboniferous and Permian coal-bearing strata in the southern Wuxiang block, Qinshui Basin, Shanxi Province, China contain abundant coalbed methane (CBM) resources. To develop intelligent discrimination technology for CBM exploration in this
Yi JIN, Yunqing TIAN, Huibo SONG, Bin HU, Zhenfeng YU   +4 more
doaj   +1 more source

Paleopathology of a putative colossosaurian caudal vertebra (Neosauropoda: Titanosauria) from the Presidente Prudente Formation, Brazil

The Anatomical Record, EarlyView.
Abstract Studies investigating paleopathologies in sauropods remain scarce despite their relative abundance in the fossil record. In this study we report new occurrence of paleopathological features, corresponding to a neoplasm found in a middle caudal vertebra (MCT.R.2120) of an advanced titanosaur from the Presidente Prudente Formation (Bauru Basin ...
Maria Luiza Peres Bertolossi, Kamila L. N. Bandeira, Roberta Veronese do Amaral, Arthur S. Brum, Rafael C. da Silva, Valéria Gallo   +5 more
wiley   +1 more source

Main controlling factors and predictive models for the study of the characteristics of remaining oil distribution during the high water-cut stage in Fuyu oilfield, Songliao Basin, China

Energy Exploration & Exploitation, 2018
The distribution of remaining oil is affected by a number of geological and engineering factors. However, previous studies have mainly focused on the effect of a certain factor or some factors on the distribution of remaining oil.
Mengsi Sun, Chiyang Liu, Congjun Feng, Ge Zhang   +3 more
doaj   +1 more source

Sedimentology and fluvial styles of the uppermost Cretaceous continental deposits of the Austral-Magallanes Basin, Patagonia, Argentina [PDF]

, 2018
The sedimentary infill of the Austral-Magallanes Basin since the onset of its foreland stage in the Lago Argentino region is dominated by deep-marine and coastal deposits. However, during the Late Cretaceous the basin accumulated a thick and poorly known
Cereceda, Abril, Gómez Peral, Lucia, Moyano Paz, Damián, Odino Barreto, Andrea Lorena, Poire, Daniel Gustavo, Tettamanti, Camila, Tineo, David, Varela, Augusto Nicolás   +7 more
core   +1 more source

Fossil biomass preserved as graphitic carbon in a late paleoproterozoic banded iron formation metamorphosed at more than 550°C [PDF]

, 2019
Metamorphism is thought to destroy microfossils, partly through devolatilization and graphitization of biogenic organic matter. However, the extent to which there is a loss of molecular, elemental and isotope signatures from biomass during high ...
De Gregorio, BT, Drost, M, Kilcoyne, DA, Marbach, H, Nittler, L, Papineau, D, Sagar, J, Thornton, G, Thorogate, R, Wang, J   +9 more
core   +2 more sources

Generating geologically realistic 3D reservoir facies models using deep learning of sedimentary architecture with generative adversarial networks

Petroleum Science, 2019
This paper proposes a novel approach for generating 3-dimensional complex geological facies models based on deep generative models. It can reproduce a wide range of conceptual geological models while possessing the flexibility necessary to honor ...
Tuanfeng Zhang, P. Tilke, Emilien Dupont, Lingchen Zhu, Lin Liang, William J. Bailey   +5 more
semanticscholar   +1 more source

Widespread distribution of large silesaurids evidenced by a new record from the Middle Triassic of southwest Gondwana

The Anatomical Record, EarlyView.
The largest silesaurid known from South America is described here, demonstrating that silesaurids reached large body sizes in southwestern Gondwana. This discovery further underscores the widespread geographic distribution and temporal persistence of large silesaurids across Pangea, despite faunal turnovers and environmental events such as the Carnian ...
Rodrigo Temp Müller
wiley   +1 more source

FIRST EVIDENCE OF PALEO-TSUNAMI DEPOSITS OF A MAJOR HISTORIC EVENT IN ECUADOR [PDF]

Science of Tsunami Hazards, 2014
The Ecuadorian shoreline is considered highly susceptible by impacts of tsunamis triggered by marine quakes or submarine landslides occurring close or nearby the subduction zone between the Nazca, Caribbean and South American plates. Since 1877 one dozen
Kervin Chunga, Theofilos Toulkeridis
doaj  

THE PROBLEMS OF IDENTIFICATION OF THE NEO-PLEISTOCENE GLACIAL MEGA-FLOOD DEPOSITS IN THE ALTAI MOUNTAINS REGION

Лëд и снег, 2015
Similarities and differences of glacial megaflood deposits and deposits of other genetic types of Gorny Altai are considered in the paper. Diluvial sedimentary complex includes (from bottom to top): debris flow facies of boulder-pebbles with giant ...
I. D. Zol’nikov, E. V. Deev
doaj   +1 more source