Results 81 to 90 of about 677 (194)

Ice‐Rafted Detritus of the Southeast Grand Banks Slope, Newfoundland, Throughout Heinrich Layers 1 to 5a: 2. Magnetic Properties

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 10, October 2025.
Abstract Ocean‐wide “Heinrich event” layers marked by weakly magnetic dolomitic ice‐rafted detritus (IRD) from the Hudson Bay region are a prominent signature of Laurentide Ice Sheet surges. Contrary to intuition, the Heinrich layers of the Ruddiman Belt IRD exhibit maxima of magnetic susceptibility. Building on IRD petrology and abundance in sediments
S. Bukar, T. von Dobeneck, Y. Wang, L. Max, T. Frederichs, E. Dallanave, G. St‐Onge   +6 more
wiley   +1 more source

The Mount Feather Diamicton of the Sirius Group: an accumulation of indicators of Neogene Antarctic glacial and climatic history

, 2002
A paucity of data from the Antarctic continent has resulted in conflicting interpretations of Neogene Antarctic glacial history. Much of the debate centres on interpretations of the glacigene Sirius Group strata that crop out as discrete deposits along ...
Ostroumov, V. E., Ashworth, A. C., Gilichinsky, D. A., Stroeven, P., Powell, R. D., Friedmann, E. I., Fyodorov-Davidov, D. G., Janecek, T. R., Stroeven, A. P., van der Meer, J. J. M., Wizevich, M. C., Rose, S. A., Wilson, G. A., Hiemstra, J. F., Barron, J. A., Licht, K. J., Dalhuisen, D. H., Harwood, David M., Carter, J. A., Harper, M. A., Askin, R. A., Rivkina, E. M., Curren, M. G.   +22 more
core  

Distribution of foraminifera, pre-Pliocene foraminifera and macrofossil debris in sediment core CRP-2 (Table 1)

, 2000
The stratigraphic distribution, assemblage content, paleoecology and age of foraminifera recovered in fourteen of sixteen samples from the 5.63 m thick CRP-2 (Lithostratigraphic Unit 2.2) are discussed.
Webb, Peter-Noel, Strong, C Percy
core   +1 more source

Stratigraphy and glaciotectonics structures of a relict deforming bed of permafrost at the northwestern margin of the Laurentide ice sheet, Tuktoyaktuk Coastlands, Canada

, 2004
The upper 5-20 m of ice-rich permafrost at three sites overridden by the northwest margin of the Laurentide ice sheet in the Tuktoyaktuk Coastlands, western Arctic Canada, comprise massive ice beneath ice-rich diamicton or sandy silt.
Hart, Jane K., Whiteman, Colin A., Colin A Whiteman (16051295), Wayne H Pollard (6981092), Waller, Richard I., Clark, I.D., Ian D Clark (7996745), Clark, Ian D., Waller, R.I., Richard I Waller (16051388), Whiteman, C.A., Pollard, W.H., Julian Murton (4460746), Murton, J.B., Jane K Hart (16052111), Murton, Julian B., Pollard, Wayne H., Hart, J.K.   +17 more
core   +1 more source

Famennian glaciation in the eastern side of Parnaíba Basin, Brazil: evidence of advance and retreat of glacier in Cabeças Formation

Brazilian Journal of Geology
Glaciotectonic features studied in the siliciclastic deposits of Cabeças Formation, Upper Devonian, represent the first evidence of Famennian glaciation in Southeastern Parnaíba Basin, Brazil. Outcrop-based stratigraphic and facies analyses combined with
Roberto Cesar de Mendonça Barbosa, Afonso César Rodrigues Nogueira, Fábio Henrique Garcia Domingos   +2 more
doaj   +1 more source

14C ages, grain size distribution and foraminifer abundance of sediments from the Barents Sea shelf

, 2009
The origin of friable sediments blanketing the Barents Sea shelf is considered. It is shown that their characteristic seismoacoustic record patterns reflect low degree of diagenetic transformations and indicates continuous sedimentation.
R B Krapivner (7984715), Krapivner, R B
core   +1 more source

Neoglacial readvance of the East Antarctic Ice Sheet to the northern Drygalski Basin (western Ross Sea)

Geoscience Letters
Our study investigates late Holocene ice-sheet activity in the northern Drygalski Basin (western Ross Sea) using a multi-proxy approach, including sediment properties, geochemical indicators, and diatom assemblages, combined with AMS 14C ages of a ...
Sangbeom Ha, Jae Il Lee, Young-Suk Bak, Kyu-Cheul Yoo, Sunghan Kim, Min Kyung Lee, Boo-Keun Khim   +6 more
doaj   +1 more source

The diamictons of Río Blanco basin, Cordon del Plata, Mendoza

, 2020
Both the sediments and the geomorphic setting of the diamictons along Rio Blanco on the piedmont east of the Cordon del Plata indicate that they could not have been deposited there by a glacier tongue, as I and several earlier observers have suggesred Rather, they must have been deposits of long-runout debris flows, as argued by Polanski.
openaire   +2 more sources

A terrestrial ice-contact fan at Seathwaite in Borrowdale: characteristics and significance. [PDF]

An exposure in hummocky moraine of Loch Lomond Stadial age (12.9-11.7 ka BP) at Seathwaite in Borrowdale displays sedimentological and structural evidence suggesting development as a terrestrial ice-contact fan.
Smith, Alan, Wilson, Peter
core   +2 more sources

Aquitard Distribution in a Northern Reach of the Miami Valley Aquifer, Ohio, USA: Part 2. Interpretation of Facies and Geostatistical Results

, 1996
For a reach of the Miami Valley aquifer system centered on Dayton, Ohio, USA, lithologic information was compiled from outcrops, from the logs of 624 wells, and from a continuous core 15 cm in diameter.
Ritzi, Robert W., Kausch, Kenneth W., Dominic, David F.   +2 more
core   +1 more source