Tunguusi fenomeni kajastus evenkide rahvapärimuses ja teaduslikes hüpoteesides [PDF]
Mäetagused, 2011 On 30 June 1908, a so far unexplained peculiar natural disaster occurred in central Siberia, in the vicinity of the River Podkamennaya Tunguska, the right tributary of Yenisei.
Natalia Dmitrieva, Vitali Romeiko
doaj
Gold and palladium as indicators of an extraterrestrial component in the Cetaceous/Tertiary boundary layer at Woodside Creek and Chancet Quarry, Marlborough, New Zealand : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Earth Sciences at Massey University [PDF]
, 1998 It is widely believed that a large meteorite approximately 10 km in diameter impacted Earth at the termination of the Cretaceous Period with cosmic velocity, vaporising itself, along with a greater mass of the terrestrial target rocks into a cloud of hot
Cook, Andrew William
core
The Compositional Structure of the Asteroid Belt
, 2015 The past decade has brought major improvements in large-scale asteroid discovery and characterization with over half a million known asteroids and over 100,000 with some measurement of physical characterization.
Alexander, Conel M. O'D. +4 more
core +1 more source
85th Annual Meeting of the Meteoritical Society (2022)
, 2022 G. G. Kenny +6 more
openalex +2 more sources
Fluorination of Silver Phosphate in Nickel Reaction Vessels for Triple Oxygen Isotope Analysis
Rapid Communications in Mass Spectrometry, Volume 40, Issue 7, 15 April 2026.ABSTRACT Rationale Increasingly, more laboratories are measuring the triple oxygen isotope values of phosphate. Standardization is key to having good interlaboratory results. Here, we present the triple oxygen isotope values of a suite of standards using fluorination and compare them with previously reported triple oxygen isotope values. Methods Silver
Jordan A. G. Wostbrock +4 more
wiley +1 more source
Geoscience Data Journal, Volume 13, Issue 1, January 2026.We build a new, open‐source global copper deposit dataset (GCDD), facilitating AI‐driven data analysis for exploration targeting and improving our understanding of copper mineralizing systems and their mappable expressions. The GCDD hosts information about 1483 copper deposits worldwide, capturing key deposit attributes such as location, genetic type ...
Bin Wang +2 more
wiley +1 more source
Robust Synthesis of Prebiotic Precursors in Drying Reactions of Amino Acids and Keto Acids
ChemSystemsChem, Volume 8, Issue 1, January 2026.Drying conditions drive reactions between amino acids and keto acids, generating a wide variety of small, reactive species, highlighting for the first time the potential significance of drying reactions in proto‐metabolism on early Earth. Condensation‐dehydration reactions are critical to both metabolism and polymerization in extant biology, and their ...
Eliav Marland +7 more
wiley +1 more source
Satellite observations of ionospheric disturbances which followed the Chelyabinsk meteorite passage [PDF]
, 2013 Л. Ф. Черногор +3 more
openalex +1 more source
Earth and Space Science, Volume 13, Issue 1, January 2026.Abstract Oxychlorines (i.e., perchlorates (ClO4−) and chlorates (ClO3−)) have been detected by several landed missions on Mars at various locations. These missions have provided crucial information about the geographic distribution and abundances of oxychlorines on Mars but have not definitively identified the cation and anion type of in situ, solid ...
J. V. Clark +15 more
wiley +1 more source