Delivery of water and organics by asteroid and comet impacts may have influenced prebiotic chemistry on the early Earth. Some recent prebiotic chemistry experiments emphasize …
Although there is evidence for periodic geological perturbations driven by regular or semi- regular extra-terrestrial bombardment, the production of Earth's continental crust is generally …
K Terada, T Morota, M Kato - Nature Communications, 2020 - nature.com
Meteoroid bombardment of the Earth-Moon system must have caused catastrophic damage to the terrestrial ecosphere. However, ancient meteoroid impacts and their relations to …
U-Pb ages of detrital zircons were newly dated for 4 Archean sandstones from the Pilbara craton in Australia, Wyoming craton in North America, and Kaapvaal craton in Africa. By …
Dynamical scenarios of terrestrial planets formation involve strong perturbations of the inner part of the solar system by the giant-planets, leading to enhanced impact velocities and …
Abstract The silicate Earth contains Pt‐group elements in roughly chondritic relative ratios, but with absolute concentrations< 1% chondrite. This veneer implies addition of chondrite …
Impact-induced erosion of the Earth's early crust during accretion of terrestrial bodies can significantly modify the primordial chemical composition of the Bulk Silicate Earth (BSE, that …
The geologic story of the Great Lakes region is one of the most remarkable of any place on Earth. Great Lakes Rocks takes readers on this fascinating journey through geologic history …
The circumstances surrounding the origins of life on Earth are still unknown, though substantial progress has been made recently. In general, the origins of life might have …