Results 51 to 60 of about 61,505 (248)

Seismological structure of the 1.8 Ga Trans-Hudson Orogen of North America [PDF]

, 2016
Precambrian tectonic processes are debated: what was the nature and scale of orogenic events on the younger, hotter, and more ductile Earth? Northern Hudson Bay records the Paleoproterozoic collision between the Western Churchill and Superior plates—the ∼
Abbott, Acton, Agius, Ammon, Amy Gilligan, Baird, Bao, Bastow, Bastow, Berman, Berman, Breemen, Bédard, Caldwell, Christensen, Corrigan, Corrigan, Darbyshire, Darbyshire, Darbyshire, Eaton, Eaton, Ekström, Fiona A. Darbyshire, Flament, Garth, Gibb, Gilligan, Hartlaub, Hartlaub, Herrmann, Hoffman, Ian D. Bastow, Jones, Kennett, Kgaswane, Kind, Leech, Ligorría, Nelson, Nunn, Nábělek, Pawlak, Pawlak, Porritt, Rai, Rapine, Rey, Schneider, Schulte-Pelkum, Snyder, Snyder, St-Onge, St-Onge, St-Onge, Thompson, Thompson, Tugume, Wessel, Zegers, Zhang, Zhu, Özalaybey   +62 more
core   +1 more source

Weichselian history of the Fennoscandian Ice Sheet centre, Kvarken archipelago, western Finland—flow shifts, thermal regime and deglaciation

Boreas, EarlyView.
Rapid thaw of the Earth's cryosphere in response to anthropogenic warming highlights the need to identify and understand the contrasting signatures of past ice‐sheet stability and collapse. The Kvarken archipelago, western Finland, at the centre of the former Fennoscandian Ice Sheet (FIS), has been designated a UNESCO World Heritage site in recognition
Niko Putkinen, Tapani Tervo, Adrian M. Hall, Juha P. Lunkka, Pertti Sarala, Olli Breilin, Jari Nenonen   +6 more
wiley   +1 more source

AGE CONSTRAINTS AND SOURCE AREAS FOR THE PRECAMBRIAN TO CAMBRIAN STRATA OF THE SOUTHERN YENISEI RIDGE (REDKOLESNAYA AND OSTROVNOY FORMATIONS)

Геодинамика и тектонофизика, 2023
The Precambrian to Cambrian strata at the southwestern margin of the Siberian Platform are ubiquitously characterized by a gradual transition from red-colored alluvial and deltaic deposits to shallow-marine carbonates, reflecting a transgressive infill ...
V. V. Marusin, B. B. Kochnev, G. A. Karlova, A. I. Proshenkin   +3 more
doaj   +1 more source

Dominance and toxicity without lethality: Exploring biomass, cyanometabolites, and Daphnia responses across Cyanobacterial strains

Journal of Phycology, EarlyView.
Abstract Cyanobacteria are cosmopolitan, important components of biomass with a remarkable ability to synthesize a diverse array of bioactive compounds, some of which may have toxic effects on other organisms and ecosystems. In this study, filamentous cyanobacterial strains isolated predominantly from temperate European freshwaters (Aphanizomenon ...
Łukasz Wejnerowski, Tamara Dulić, Sultana Akter, Michał Rybak, Agnieszka Piasecka, Jakub Szymkowiak, Oskar Kamiński, Anna Czerepska, Filip Pniewski, Zorica Svirčev, Ewa Poniecka, Krzysztof Zawierucha, Katarzyna Taylor, Marcin Krzysztof Dziuba, Jussi Meriluoto   +14 more
wiley   +1 more source

STABLE ISOTOPES (δ18O, δ13C, δ34S) IN ORES FROM THE KOPYLOVSKOE, KAVKAZ AND KRASNOE GOLD DEPOSITS (BODAIBO REGION) [PDF]

Минералогия
The article presents data on isotopic composition of oxygen of vein quartz and carbonates, carbon of carbonates, and sulfur of sulfides of the Kopylovskoe, Kavkaz and Krasnoe gold deposits located within the Baikal-Patom Highland in the Ediacaran ...
E.E. Palenova, S.A. Sadykov
doaj   +1 more source

The Hudson Bay Lithospheric Experiment (HuBLE) : Insights into Precambrian Plate Tectonics and the Development of Mantle Keels [PDF]

, 2015
The UK component of HuBLE was supported by Natural Environment Research Council (NERC) grant NE/F007337/1, with financial and logistical support from the Geological Survey of Canada, Canada–Nunavut Geoscience Office, SEIS-UK (the seismic node of NERC ...
Bastow, I. D., Darbyshire, F. A., Eaton, D. W., Helffrich, G., Kendall, J.-M., Pawlak, A. E., Snyder, D. B., Thompson, D. A., Wookey, J.   +8 more
core   +2 more sources

Structure and Depositional Environments of the Cenomanian–Coniacian Sequence in Crimea

Russian Journal of Earth Sciences
This paper presents the results of a facies analysis of the Upper Cretaceous deposits in Southwestern and Central Crimea and a characterization of the Cenomanian–Coniacian sequence.
Shishlov Sergey Borisovich, Ivanova V. V., Panova E. G., Dubkova K. A., Kuznecov A. B., Chebotareva V. A.   +5 more
doaj   +1 more source

Guide to the geology of Bradgate Park and Swithland Wood, Charnwood Forest [PDF]

, 2010
Charnwood Forest is one of the few parts of England where there are exposures of ‘basement’ rocks dating back to Precambrian time. Its locally rugged topography is caused by these highly resistant rocks protruding as craggy knolls through a surrounding ...
Carney, J.N.
core  

Determining impact angle from the spatial distribution of shock metamorphism: A case study of the Gosses Bluff (Tnorala) impact structure, Australia

Meteoritics &Planetary Science, EarlyView.
Abstract The majority of planetary impacts occur at oblique angles. Impact structures on Earth are commonly eroded or buried, rendering the identification of the direction and angle of impact—using methods such as asymmetries in ejecta distribution, surface topographic expression, central uplift structure, and geophysical anomalies—challenging. In this
Eloise E. Matthews, Auriol S. P. Rae, Thomas Kenkmann, Nicholas E. Timms, Aaron J. Cavosie, Marian B. Holness   +5 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