Results 111 to 120 of about 14,134 (261)

Výzkum pravěkého osídlení v západní části pohoří Sabaloka v centrálním Súdánu: poznatky z výzkumné sezóny 2018 | Exploration of the late prehistoric occupation in the western part of Jebel Sabaloka in central Sudan: findings of the 2018 field campaign [PDF]

Pražské Egyptologické Studie, 2019
The most significant findings of the ongoing exploration of the Fox Hill site in the western part of the Sabaloka Mountains include the detection of extensive remains of a more-than-one-metre thick deposit on Terrace 1, tentatively interpreted as a relic
Lenka Varadzinová, Ladislav Varadzin, Isabelle Crevecœur, Katarína Kapustka, Jon-Paul McCool , Zdeňka Sůvová   +5 more
doaj  

ALCOA #1 (41AN87): A Frankston Phase Settlement along Mound Prairie Creek, Anderson County, Texas [PDF]

, 1991
The ALCOA #1 (41AN87) site is a Frankston Phase (ca. A.D. 1400-1650) site located on a high alluvial terrace of Mound Prairie Creek, about seven kilometers northeast of Palestine, Texas.
Amick, Clyde, Bruseth, James E., Furman, Ed, Perttula, Timothy K., Yates, Bonnie C.   +4 more
core   +1 more source

Static recrystallization of shocked calcite in Ries impact breccias

Meteoritics &Planetary Science, EarlyView.
Abstract Calcite is prone to chemical and microstructural modifications, especially after having been strained at high stresses and strain rates, as during hypervelocity impact events. These modifications include precipitation from pore fluid as well as replacement of strained volumes by recrystallization. In calcite aggregates of a metagranite breccia
Claudia A. Trepmann, Fabian Dellefant, Lina Seybold, Wolfgang W. Schmahl, Elena Sturm, Daniel Weidendorfer, Sandro Jahn, Iuliia V. Sleptsova, Stuart A. Gilder   +8 more
wiley   +1 more source

Confirmation of the impact origin of the Late Ordovician Tvären impact structure (southeast Sweden) and emplacement of impactites in a marine setting

Meteoritics &Planetary Science, EarlyView.
Abstract The Tvären structure in southeastern Sweden has been listed as a confirmed marine‐target impact structure for decades. However, to date, no measurements and/or indexed data of planar deformation features in quartz grains from the structure have been published or any other unequivocal evidence of impact.
Katarzyna J. Gajewska, Sanna Alwmark, Mikael Calner, Sylvain Richoz, Jens Ormö, Erik Sturkell, Carl Alwmark   +6 more
wiley   +1 more source

Bright sand/dark dust: The identification of active sand surfaces on the Earth and Mars [PDF]

Field studies and analysis of LANDSAT Thematic Mapper data in the Gran Desierto, Mexico may shed light on a technique to distinguish active from inactive (relict) sand surfaces.
Arvidson, R., Blount, H. G., II, Christensen, P. R., Greeley, R.   +3 more
core   +1 more source

Polymict melt‐bearing breccia dikes in the Morokweng impact structure formed by slip‐induced mechanical mixing of pseudotachylite and cataclasite along large‐displacement impact faults

Meteoritics &Planetary Science, EarlyView.
Abstract A core drilled through shocked and faulted Archean granitoid gneisses and dolerites in the eroded peak ring of the 70–80 km diameter Morokweng impact structure intersects multiple centimeter‐ to meter‐wide clastic‐matrix breccias containing a polymict clast population of lithic and mineral clasts and altered, millimeter‐ to centimeter ‐size ...
Roger L. Gibson, S'lindile S. Wela, Leonidas C. Vonopartis, Marco A. G. Andreoli   +3 more
wiley   +1 more source

Preliminary Report on an Archeological Survey of Stormy Point [PDF]

, 1991
This is a report on an archaeological survey of the point of land that extends south into Caddo Lake opposite Mooringsport, Louisiana. The nineteenth century name for this area was Stormy Point, and the area into which Stormy Point extends was called ...
Hardey, Jim, McCrocklin, Claude
core   +1 more source

A century of oil and gas exploration in Albania: assessment of Naturally Occurring Radioactive Materials (NORMs)

, 2015
Because potential Naturally Occurring Radioactive Materials (NORMs) generated from oil and gas extractions in Albania have been disposed without regulatory criteria in many decades, an extensive survey in one of the most productive regions (Vlora-Elbasan)
Baldoncini, Marica, Callegari, Ivan, Colonna, Tommaso, Hasani, Fadil, Kaçeli, Merita Xhixha, Mantovani, Fabio, Shala, Ferat, Strati, Virginia, Xhixha, Gerti   +8 more
core   +1 more source

Bio‐mediated cementation of supratidal beach sediments associated with groundwater springs

Sedimentology, EarlyView.
ABSTRACT The formation of beachrock, sensu stricto, via carbonate precipitation in the intertidal zone is widespread throughout the tropics and subtropics. While cementation of supratidal beach sediments has also been noted in several locations, it has received much less attention.
Thomas William Garner, J. Andrew G. Cooper   +1 more
wiley   +1 more source

Elites, eccentrics, and empowerments in the Maya area: implications for the interpretation of a peripheral settlement cluster near Cahal Pech, Belize

Papers from the Institute of Archaeology, 1993
This paper focuses on the eccentric lithics recovered from the Tzinic group, a major settlement cluster located in the periphery of the larger site of Cahal Pech.
doaj   +2 more sources