Results 31 to 40 of about 41,471 (231)

Propagation of Rayleigh waves at oblique impact of the meteorite about the earths surface and their effects on buildings and structures [PDF]

Компьютерные исследования и моделирование, 2013
In this paper the dynamic elasticity problem of the simultaneous normal and tangential impact on the half-space is solved. This problem simulates the oblique incidence of meteorite on the Earths surface. The surface Rayleigh wave is investigated.
V. L. Yakushev, A. V. Filimonov, I. S. Nikitin   +2 more
doaj   +1 more source

Orbital evolution of P\v{r}\'{i}bram and Neuschwanstein

, 2011
The orbital evolution of the two meteorites P\v{r}\'{i}bram and Neuschwanstein on almost identical orbits and also several thousand clones were studied in the framework of the N-body problem for 5000 years into the past.
A. Pauls, B.A. Lindblad, D.C. Jones, D.C. Jones, D.O. ReVelle, H. Stauffer, I. Halliday, J. Oberst, J.S. Stuart, Juraj Tóth, Leonard Kornoš, P. Brown, P. Spurný, P. Vereš, P. Vereš, Peter Vereš, R.B. Southworth, V. Porubčan, W.F. Bottke, Z. Ceplecha, Z. Wu   +20 more
core   +1 more source

Lunar meteorite regolith breccias: an in situ study of impact melt composition using LA-ICP-MS with implications for the composition of the lunar crust [PDF]

, 2010
Dar al Gani (DaG) 400, Meteorite Hills (MET) 01210, Pecora Escarpment (PCA) 02007, and MacAlpine Hills (MAC) 88104/88105 are lunar regolith breccia meteorites that provide sampling of the lunar surface from regions of the Moon that were not visited by ...
Anders, Antonenko, Arai, Arai, Arai, Arvidson, Basaltic Volcanism Study Project, Bland, Bukovanska, Bussey, Cahill, Campbell, Cohen, Cohen, Crawford, Crozaz, Day, Delano, Deutsch, Eugster, Fernandes, Floss, Goodrich, Goodrich, Haloda, Haskin, Hawke, Hawke, Head, Head, Hörz, Jolliff, Jolliff, Jolliff, Jolliff, Jolliff, Joy, Joy, Koeberl, Koeberl, Korotev, Korotev, Korotev, Korotev, Korotev, Korotev, Korotev, Korotev, Korotev, Lawrence, Lawrence, Levine, Lindstrom, Lindstrom, Liu, Longhi, Lucey, Lucey, Lucey, McKay, McKay, McKinley, Neal, Neal, Nishiizumi, Norman, Nyquist, Ohtake, Palme, Papike, Papike, Pearce, Pieters, Prettyman, Reimold, Rubin, Russell, Ryder, Ryder, Schnare, Shearer, Shearer, Sokol, Spudis, Spudis, Spudis, Stöffler, Swinyard, Takeda, Taylor, Taylor, Terada, Terada, Vaniman, Warren, Warren, Warren, Warren, Warren, Wasson, Wieczorek, Wieczorek, Zipfel, Zolensky   +103 more
core   +1 more source

Silica-rich volcanism in the early solar system dated at 4.565 Ga

Nature Communications, 2018
Achondritic meteorites can record volcanism and crust formation on planetesimals in the early Solar System. Here, the authors date the Northwest Africa 11119 meteorite with an Al-Mg age of 4564.8 ± 0.3 Ma indicating that this is the earliest evidence of ...
Poorna Srinivasan, Daniel R. Dunlap, Carl B. Agee, Meenakshi Wadhwa, Daniel Coleff, Karen Ziegler, Ryan Zeigler, Francis M. McCubbin   +7 more
doaj   +1 more source

An Idea to Explore: From How to Why: Using Evolutionary Biochemistry to Inspire Biochemistry Education

Biochemistry and Molecular Biology Education, EarlyView.
ABSTRACT Traditional biochemistry instruction often emphasizes mechanistic detail, that is, how molecules and pathways function, without equally addressing why they have their present forms. This fact‐centered approach can leave students overwhelmed and disconnected from the broader scientific narrative.
Alberto Vázquez‐Salazar
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, Somayye Rezaei   +1 more
doaj   +1 more source

Heating experiments of the Tagish Lake meteorite: Investigation of the effects of short-term heating on chondritic organics

, 2019
We present in this study the effects of short-term heating on organics in the Tagish Lake meteorite and how the difference in the heating conditions can modify the organic matter (OM) in a way that complicates the interpretation of a parent body’s ...
,, ,, Chan, Queenie H. S., Nakato, Aiko
core   +1 more source

Halite and stable chlorine isotopes in the Zag H3-6 breccia [PDF]

, 2004
Zag is an H3-6 chondrite regolith breccia within which we have studied 14 halite grains ?3mm. The purity of the associated NaCl-H2O brine is implied by freezing characteristics of fluid inclusions in the halite and EPMA analyses together with a lack of ...
Banks, D.A., Bridges, J.C., Grady, M.M., Smith, M.   +3 more
core   +1 more source

Charge State Influence on Stability and Isomerism in Dehydrogenated PAHs: Insights from Anthracene, Acridine, and Phenazine

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, Farouk Hamza Reguig, Manuel Alcamí, Al Mokhtar Lamsabhi   +3 more
wiley   +1 more source

Trace element composition of troilite, iron and iron-nickel metall from meteorite Chelyabinsk

Литосфера, 2015
We studied the contents of trace elements in troilite, iron and in iron-nickel metal from meteorite Chelyabinsk by means of LA-ICP-MS. The features of the distribution of siderophile and chalcophile elements in sulfide and metallic phase in gray and ...
S. Yu. Stepanov, S. V. Berzin
doaj   +2 more sources