Results 41 to 50 of about 31,856 (219)

Major engineering breakthrough of Well XA‐1, the deepest ten‐thousand‐meter well in a global sedimentary basin

open access: yesDeep Underground Science and Engineering, EarlyView.
Well XA‐1, completed at a true vertical depth of 11 156 m in the Shawan Sag of the Junggar Basin, is the deepest predominantly near‐vertical well drilled in a sedimentary basin. The figure shows the basin's tectonic framework and well location (a), a structural cross‐section spanning the Shawan Sag and adjacent uplifts (b), and the stratigraphic column
Fangkai Liu   +3 more
wiley   +1 more source

Academician Vladimir Laskarev (1868-1954) and Paratethys [PDF]

open access: yesGeološki Anali Balkanskoga Poluostrva
Vladimir Laskarev (1868–1954) Russian and Serbian geologist strongly influenced geological literature by introducing a scientific term Paratethys for the series of intercontinental water basins separated from the Mediterranean Sea and the World Ocean by ...
Malakhova Irina   +3 more
doaj   +1 more source

Renewable energy mapping in Northeastern Morocco: A geographic information system‐based comparison of geothermal, solar, and wind potential in the Guercif‐Guilliz and Beni Snassen regions

open access: yesDeep Underground Science and Engineering, EarlyView.
The graphical abstract summarizes a geographic information system (GIS)‐based synthesis of renewable energy resources in Northeastern Morocco, focusing on the Guercif‐Guilliz and Beni Snassen areas. It visually presents the spatial distribution of solar irradiation and wind energy potential derived from available datasets, alongside their relationship ...
Meryem Redouane   +5 more
wiley   +1 more source

Metallogenic Conditions and Prospecting Directions of Neogene Sandstone-type Uranium Deposits in Tarim Basin

open access: yesYuanzineng kexue jishu
The Tarim Basin is one of the main uranium-producing basins in northern China, but uranium deposits are primarily concentrated in the marginal areas of the basin.
GUO Qiang1, 2, 3, CHENG Yuhan1, 2, 3, YANG Wenlong4, LIU Nian1, 2, 3, XIAO Jing1, 2, 3, XU Qiang1, 2, 3
doaj   +1 more source

New remains and paleoecology of uruguaytheriine astrapotheres (Mammalia) from the Middle Miocene of Bolivia [PDF]

open access: yesActa Palaeontologica Polonica
Astrapotheres (Astrapotheria) are an order of South American native ungulates (SANUs), and the geologically youngest astrapotheres belong to the subfamily Uruguaytheriinae (Astrapotheriidae).
Julia Van Orman   +5 more
doaj   +1 more source

Geoenergy potential of the Croatian part of Pannonian Basin: insights from the reconstruction of the pre-Neogene basement unconformity

open access: yesJournal of maps, 2019
Presented work focuses on the importance of unconformity that separates the Neogene infill from older Palaeozoic and Mesozoic rocks in the Croatian part of Pannonian Basin.
M. Cvetkovic   +10 more
semanticscholar   +1 more source

Phylogenetic structure of conifers in regional floras in relation to climate and environmental heterogeneity worldwide

open access: yesEcography, EarlyView.
Despite having only about 670 species worldwide, conifers are one of the ecologically and economically most important plant groups. They have a rich fossil record and previous studies have shown that their current diversity is the result of past radiations, extinction, and dispersal events, restricting many genera to either the Northern or Southern ...
Hong Qian, Michael Kessler, Shenhua Qian
wiley   +1 more source

Replacement of Ores Recorded by Textures and Chemical Compositions of Sphalerite: An Example From the Furutobe Kuroko Deposit, Akita, Japan

open access: yesGeological Journal, EarlyView.
Coupled dissolution‐reprecipitation of early formed Cd‐, Fe‐, Ag‐ and Sb‐poor sphalerite through interaction with high‐temperature and high‐sulphur fugacity Cu‐rich fluids, responsible for the formation of the yellow ores, resulted in the formation of Cd‐, Fe‐, Ag‐ and Sb‐rich, heavily chalcopyrite‐diseased sphalerite and enrichment of critical metals ...
Manuel Nopeia   +4 more
wiley   +1 more source

The Neogene lakes on the Balkan land [PDF]

open access: yesGeološki Anali Balkanskoga Poluostrva, 2012
Palaeogeographic maps of the lacustrine Miocene and Pliocene have been constructed according to all the known geological data. The Lakes of the Balkan Land, depending on the tectonics, migrated due to causes from the deep subsurface.
Krstić Nadežda   +2 more
doaj   +1 more source

Neogene biomarker record of vegetation change in eastern Africa

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2016
The evolution of C4 grassland ecosystems in eastern Africa has been intensely studied because of the potential influence of vegetation on mammalian evolution, including that of our own lineage, hominins.
K. Uno   +3 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy