Results 31 to 40 of about 38,084 (153)

A multi-proxy study of the Kalkkop impact Crater Lake deposits in south-central South Africa: implications for late neogene climate evolution [PDF]

open access: yes, 2014
Includes bibliographical references.The Kalkkop Crater Lake deposit formed as a result of a meteorite impact, and is situated ~51 km southwest of Graaff-Reinet in the Southern part of South Africa.
Mthembi, Ponani
core   +1 more source

Geophysical characterization of hydrothermal systems and intrusive bodies, El Chichón volcano (Mexico) [PDF]

open access: yes, 2011
[1] The 1982 explosive eruptions of El Chichón volcano (Chiapas, Mexico) destroyed the inner dome and created a 1-km-wide and 180-m-deep crater within the somma crater.
Roach, Michael   +5 more
core   +1 more source

Models for evaluating craters morphology, relation of indentation hardness and uniaxial compressive strength via a flat-end indenter

open access: yesOpen Geosciences, 2018
In this work, the intensive theoretical study and laboratory tests are conducted to evaluate the craters morphology via the flat-ended indenter test, relationship of indentation hardness (HRI) and uniaxial compressive strength (UCS).
Zhang Ligang   +5 more
doaj   +1 more source

Community-Based Participatory Research and Sustainability: The Petersburg Wellness Consortium

open access: yesJournal of Community Engagement and Scholarship, 2022
The principle and practice of sustainability is critical in community-based participatory research. Actively planning for and building community capacity to ensure sustainability is even more critical in research involving underserved populations and ...
Maghboeba Mosavel   +5 more
doaj   +1 more source

Temporal Evolution of Crater Populations Formed on Different Facies of Lunar Complex Craters

open access: yesRemote Sensing
The formation of a large complex crater is accompanied by the simultaneous formation of coeval sub-geological units that have diverged physical properties, such as a central melt pool and an ejecta blanket.
Yihan Zhang, Minggang Xie, Zhiyong Xiao
doaj   +1 more source

Water‐Ice Exposing Scarps Within the Northern Midlatitude Craters on Mars

open access: yesGeophysical Research Letters, 2020
We report new exposures of water ice along the scarps wall located within craters in the northern midlatitude region of Mars using high‐resolution imagery and spectral data of Mars Reconnaissance Orbiter.
Harish   +3 more
doaj   +1 more source

Evidence of Gas Emissions from Permafrost in the Russian Arctic

open access: yesGeosciences, 2020
The active emission of gas (mainly methane) from terrestrial and subsea permafrost in the Russian Arctic has been confirmed by ample evidence. In this paper, a generalization and some systematization of gas manifestations recorded in the Russian Arctic ...
Evgeny Chuvilin   +4 more
doaj   +1 more source

Identifying and Interpreting Stratification in Sedimentary Rocks on Mars: Insight from Rover and Orbital Observations and Terrestrial Field Analogs [PDF]

open access: yes, 2013
Sedimentary rocks on Mars provide insight into past aqueous and atmospheric processes, climate regimes, and potential habitability. The stratigraphic architecture of sedimentary rocks on Mars is similar to that of Earth, indicating that the processes ...
Edgar, Lauren Ashley
core   +1 more source

A new lake in the Korbut Crater of Ebeko Volcano (Paramushir Island, Kuriles Islands)

open access: yesВестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, 2022
The paper reports the appearance of a new crater lake on the Ebeko volcano. There has been no thermal lake within the Northern Crater since mid-2006. The last eruption began on October 19, 2016 and ended on November 19, 2021.
Kotenko T.A., Kotenko L.V.
doaj   +1 more source

Lamington, Foot of the Lane School with students

open access: yes, 1890
Students at Foot of the Lane School during the 1890s. Students identified are: First row: 4th from left, Ruston Crater Second row: 3rd from left, Fanny Crater; 5th from left, John Rinehart; 6th from left, Kate Lane. Far right, Runkle Hageman.

core   +1 more source

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