Results 51 to 60 of about 21,160 (248)
Search and Collection of Yamato Meteorites, Antarctica, in October and November 1974
Antarctic Record, 1976 From October 25, 1974 to January 17, 1975 a four-man party of the 15th Japanese Antarctic Research Expedition (1973-1975) made an oversnow traverse to the Yamato Mountains area for a systematic search for the Yamato meteorites and geological survey.
Keizo YANAI
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Mercury cycling during the last glacial period in Arctic Lake El'gygytgyn, NE Russia
Journal of Quaternary Science, EarlyView.ABSTRACT Tectonic processes play a key role in the global mercury (Hg) cycle on geological timescales, by mobilising Hg from deep Earth reservoirs to the surface. These natural fluxes also introduce a dynamic component to the terrestrial Hg cycle that can interact with other environmental signals and influence Hg delivery to sedimentary records.
Alice R. Paine +7 more
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Radiocarbon datings of Yamato meteorites [PDF]
, 1986 The terrestrial ages of five Yamato Meteorites were measured by the content of cosmic-ray-produced carbon-14. Three Yamato Meteorites Y-74013, Y-74097, and Y-74136, which are all diogenites, were found at sites from one to two kilometers apart from each ...
Matsuda, E., Kigoshi, K.
core
Ontogeny of foraging behaviour in an opportunistic gull inhabiting urban marine ecosystems
Wildlife Biology, EarlyView.Urbanization affects ecosystems by reducing biodiversity and displacing species from native habitats. While some suffer, others, like urban wildlife, adapt through innovative feeding and behaviours that improve their fitness in human‐altered settings. Despite research on wildlife in urban areas, the development of foraging behaviour in urban species is
Joan Navarro +7 more
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Exogenous carbonaceous material on Phobos
Astronomy & AstrophysicsAims. We analyze Mars Express (MeX)/OMEGA Phobos’ data in the 2.5–3.9 μm range to investigate the presence of organic material. Methods. We applied a thermal correction to the OMEGA data and identified regions of interest (ROIs) to extract mean spectra ...
Beccarelli J. +9 more
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Young asteroidal fluid activity revealed by absolute age from apatite in carbonaceous chondrite
Nature Communications, 2016 Chondritic meteorites formed in the early solar system and may tell us about primary processes at that time. Here, Zhang et al. report an absolute 207Pb/206Pb isochron age (4,450±50 Ma) of apatite from a carbonaceous chondrite constraining timing of ...
Ai-Cheng Zhang +7 more
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Hydrothermal origin of metabolic phosphorylation
The FEBS Journal, EarlyView.Serpentinizing hydrothermal vents are candidate sites for biochemical origins. They generate extremely reducing conditions, depositing phosphite (HPO32−) and transition metals, including palladium, in the native (zero‐valent) state. Schlikker et al.
Manon L. Schlikker +5 more
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The abundance and isotopic composition of Cd in iron meteorites [PDF]
, 2013 Cadmium is a highly volatile element and its abundance in meteorites may help better understand volatility-controlled processes in the solar nebula and on meteorite parent bodies.
Leya, Ingo +9 more
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