Results 51 to 60 of about 67,364 (304)
The Richardton Meteorite [PDF]
The Journal of Geology, 1919 At 9:48 P.M. Mountain time, June 30, I918,' a meteorite was seen to fall in the country between Richardton and Mott, North Dakota. Pieces fell on both sides of the line between Stark and Hettinger counties within a strip about 9 miles wide from north to south and 5 miles wide from east to west. The center of this area lies in altitude 46037'30" N.
openaire +3 more sources
The Anatomical Record, EarlyView.Abstract Plutonium was discovered and first synthesized in the early 1940's. Several isotopes of plutonium are used in nuclear technologies, 238Pu for heat generation and 239Pu for energy production and weapons. Both isotopes emit alpha particles, which pose a significant radiation hazard when incorporated into the body.
Scott C. Miller
wiley +1 more source
Вісник Астрономічної школи, 2018 Asteroids and cometary nuclei consist of the same primary substance as the gas-dust cloud from which the solar system was formed. Now this substance is being studied in the meteorite material that fell to the Earth's surface. NASA experts suggested after
A. P. Vidmachenko, A. F. Steklov
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Crystals, 2020 Stanfieldite, natural Ca-Mg-phosphate, is a typical constituent of phosphate-phosphide assemblages in pallasite and mesosiderite meteorites. The synthetic analogue of stanfieldite is used as a crystal matrix of luminophores and frequently encountered in ...
Sergey N. Britvin +3 more
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Chemosensors, 2023 Meteorites are an essential reference for human exploration of the universe and its cosmic evolution and an essential research object for searching for extraterrestrial life. Ways to quickly identify and screen suspected meteorite samples have become the
Hongpeng Wang +9 more
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Ion irradiation of the Murchison meteorite: Visible to mid-infrared spectroscopic results
, 2015 Aims. The goal of this study is to simulate space weathering processes on primitive bodies. We use ion implantation as a simulation of solar wind irradiation, which has been suggested by several authors to be the major component of space weathering on ...
C. Lantz +8 more
semanticscholar +1 more source
Crystal Structure of Carbonic Acid (H2CO3) at Elevated Pressures from Single‐Crystal Diffraction
Chemistry – A European Journal, EarlyView.Carbonic acid (H2CO3) was synthesized by a reaction of H2O with CO2 at moderate pressures and temperatures. For the first time, the crystal structure of an H2CO3 polymorph was determined by single‐crystal X‐ray diffraction. The structural model was confirmed by DFT‐based calculations in combination with experimental Raman spectroscopy.
Dominik Spahr +9 more
wiley +1 more source
Spectroscopic and Petrographic Investigations of Lunar Mg-Suite Meteorite Northwest Africa 8687
Remote Sensing, 2022 Magnesian suite (Mg-suite) rocks represent plutonic materials from the lunar crust, and their global distribution can provide critical information for the early magmatic differentiation and crustal asymmetries of the Moon. Visible and near-infrared (VNIR)
Lang Qin +4 more
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ChemPhysChem, Volume 26, Issue 6, March 15, 2025.The ionization of anthracene, acridine, and phenazine has been explored, along with the removal of one and two hydrogen atoms, to provide valuable information for astrochemists and to understand the behavior of the resulting structures and their electronic reorganization. Abstract In this study, we systematically explored the stability and isomerism of
Khaldia Zghida +3 more
wiley +1 more source
Evaluation of Geomorphological Evidences for Possible Impact Crater of Zirouki in Sistan and Baluchestan, SE Iran [PDF]
مخاطرات محیط طبیعی, 2014 Despite the extensive studies on geomorphological phenomena in Iran, since investigation of meteorite impact craters h not been considered. Based on both remote sensing technique and field work we have recognized the circular structure of Zirouki crater ...
Mohammadreza Mansouri Daneshvar +1 more
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