Results 91 to 100 of about 7,757,874 (295)
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
wiley +1 more source
On the detection of the Wilkes Land impact crater
Earth, Planets and Space, 2018 The definitive existence of a giant impact crater, two times larger than the Chixulub crater in the Yucatan peninsula, from an extraterrestrial origin, 1.6 km beneath Wilkes Land, East Antarctica, remain controversial.
Jaroslav Klokočník +2 more
doaj +1 more source
Crater formation during raindrop impact on sand [PDF]
, 2017 After a raindrop impacts on a granular bed, a crater is formed as both drop and target deform. After an initial, transient, phase in which the maximum crater depth is reached, the crater broadens outwards until a final steady shape is attained.
Song-Chuan Zhao +5 more
core +2 more sources
Journal of Quaternary Science, EarlyView.ABSTRACT Glacial/interglacial climate cycles since marine isotope stage (MIS) 12 influenced the discontinuous and 73 m‐long sediment record from the volcanic crater of Rodderberg in the East Eifel Volcanic Field, Germany. High‐resolution grain size and geochemical data have been valued by numerical dating techniques (radiocarbon and luminescence dating,
Bernd Zolitschka +4 more
wiley +1 more source
STUDY ON LIFE PREDICTION AND FATIGUE TEST OF ZM6 MATERIAL WITH IMPACT PIT
Jixie qiangdu, 2021 The smooth specimens,notched specimens and impact crater specimens of ZM6 material were prepared. The fatigue test of these specimens was carried out,and the fatigue life of these specimens under different stress levels was obtained.Based on the theory ...
LI Jian +4 more
doaj
An Open Database of Lunar Regolith and Simulants Properties
International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.ABSTRACT Lunar regolith, the layer of unconsolidated material covering the Moon's surface, is central to the science and technology developed for the Moon, notably related to in‐situ science investigations, resource utilization, surface infrastructure, and mobility systems.
Léonie Gasteiner +2 more
wiley +1 more source
Vog: Using Volcanic Eruptions to Estimate the Health Costs of Particulates
The Economic Journal, EarlyView., 2018 The negative consequences of long‐term exposure to particulate pollution are well established but a number of studies find no effect of short‐term exposure on health outcomes. The high correlation of industrial pollutants complicates the estimation of the impact of individual pollutants on health.
Timothy J. Halliday +2 more
wiley +1 more source
Geomorphology of Krieger Crater (Moon)
Journal of MapsKrieger crater is a ∼25 km diameter Imbrian complex crater located in Oceanus Procellarum, within the northern Aristarchus–Harbinger region on the Moon. This work presents a new high-resolution geomorphological map derived from integrated analysis of LRO
Claudia Collu +3 more
doaj +1 more source
Polymer Composites, EarlyView.Thermal Aging and Tribological Tests of Additive Manufactured PLA Composites. ABSTRACT This study focuses on the additive manufacturing of pure polylactic acid (PLA) specimens and milled glass fiber (GF)‐filled PLA composites under thermal cycling aging and wear tests. Wear tracks have been analyzed via 3D optical profiling and SEM imaging.
Sinan Fidan +5 more
wiley +1 more source
The Chicxulub impact crater and oblique impact
, 2006 textWas Chicxulub an oblique (<45 degrees) impact? The answer to this question will help our understanding of the environmental consequences of the bolide that struck the Earth 65 ma in the Yucatan Peninsula.
McDonald, Matthew A.
core +1 more source