Results 91 to 100 of about 74,067 (261)

Magma volume, volatile emissions, and stratospheric aerosols from the 1815 eruption of Tambora [PDF]

, 2004
We suggest that the Tambora 1815 eruption was smaller than previously thought, yielding 30–33 km3 of magma. Valuable insight into the eruption is gained by comparing it to the much smaller 1991 Pinatubo event, which had a similar eruption style and rate.
Gertisser, R., Wolff, J. A, Rampino, M. R., Wolff, J. A., Gertisser, R, Rampino, M. R, Thordarson, T, Self, S, Thordarson, T., Self, S.   +9 more
core   +1 more source

Revisiting olivine‐phyric shergottites: Pyroxene crystallization pressure and the role of undercooling

Meteoritics &Planetary Science, EarlyView.
Abstract Shergottites are the most abundant meteorites from Mars and a major source of information on magma reservoirs, transport, and eruption, particularly in the late Hesperian northern hemisphere. Conflicting interpretations have arisen on the crystallization conditions of pyroxene in olivine‐phyric shergottites.
Roger H. Hewins, Brigitte Zanda, Arnaud Duverger   +2 more
wiley   +1 more source

A three-dimensional study of a crustal low velocity region beneath the 9°03′N overlapping spreading center [PDF]

, 2003
Overlapping spreading centers (OSCs) play a key role in models of magma distribution at fast spreading ridges. To investigate the relationship between ridge-axis discontinuities and magma supply, we conducted a three-dimensional seismic reflection and ...
Harding, A.J., Pye, J, Kent, GM, Tong, CH, Tong, C.H., Sinha, MC, White, R.S., van Avendonk, H.J.A., Hobbs, R.W., Pye, J.W., Bazin, S, Harding, AJ, Barton, PJ, Hobbs, RW, Kent, G.M., Barton, P.J., Sinha, M.C., HJA, VA, Bazin, S., Orcutt, J.A., Singh, SC, Orcutt, JA, White, RS, Singh, S.C.   +23 more
core   +1 more source

The MexMAGIC population reveals the genetic architecture of traits exhibiting clinal variation in Mexican native maize

New Phytologist, EarlyView.
The MexMAGIC population mixes native maize varieties from across Mexico to study functional genetic diversity. Summary Defining the genetic basis of local adaptation is a key goal of evolutionary biology and crop improvement. Theory predicts that when selective pressures follow differences in the environment, a cline will be established.
Sergio Perez‐Limón, Ana Laura Alonso‐Nieves, M. Rosario Ramírez‐Flores, G. Carolina Cintora‐Martínez, M. Nancy Salazar‐Vidal, Jorge Vladimir Torres‐Rodriguez, Jessica Carcaño‐Macías, Melanie G. Perryman, Oliver H. S. Paulson, Jagdeep S. Sidhu, Peng Yu, Victor Llaca, Kevin A. Fengler, Forrest Li, Daniel E. Runcie, Jeffrey Ross‐Ibarra, C. Stewart Gillmor, Rubén Rellán‐Álvarez, Ruairidh J. H. Sawers   +18 more
wiley   +1 more source

Magmatic system of the Klyuchevskoy volcano according to seismic data and their geomechanical interpretation

Записки Горного института, 2023
3D analysis of the magma transport and accumulation mechanism in the structure and basement of the Klyuchevskoy volcano preceding 11 eruptions in 2003-2021 has been performed.
Aleksei V. Kiryukhin, Olga V. Bergal-Kuvikas, Mikhail V. Lemzikov, Nikita B. Zhuravlev   +3 more
doaj  

Heidegger and Levinas on the phenomenology of the hand: Between work and gesture

The Southern Journal of Philosophy, EarlyView.
Abstract This article explores how Heidegger and Levinas develop distinct phenomenological accounts of the hand. Both thinkers refuse to treat the hand as merely an anatomical organ, instead viewing it as an essential dimension of human existence. Yet their interpretations diverge sharply. In the first section, I show how Heidegger grounds the function
Cristian Ciocan
wiley   +1 more source

Fault‐Controlled Permeability: A Key Parameter in Geothermal Electricity Production Assessment

Terra Nova, EarlyView.
ABSTRACT Geothermal energy is central to the global green energy transition, but its development has long focused on regions with positive thermal anomalies. Through a semi‐quantitative global‐scale review and spatial analysis of 361 geothermal sites, we show that 56.2% of global geothermal electricity production occurs in regions with thermal ...
Vincent Roche, Gaétan Milesi
wiley   +1 more source

Segmented dike intrusion linked to multi-level magma storage during and before the 2025 eruption at Erta Ale (East Africa)

Frontiers in Earth Science
IntroductionDike intrusions can assist continental rifting and plate divergence. However, our understanding of the magma dynamics during diking and the architecture of the magma storage that feeds dikes are still limited by temporally and spatially ...
Alessandro La Rosa, Carolina Pagli, Derek Keir, Derek Keir, Atalay Ayele, Hua Wang, Eleonora Rivalta, Eleonora Rivalta, Elias Lewi   +8 more
doaj   +1 more source

Sr-Nd isotopic characteristic, U-Pb zircon geochronology, and petrogenesis of Najmabad Granodiorite batholith, Eastern Iran

Journal of Economic Geology, 2012
The study area is located south of Ghonabad in Eastern Iran. This area is situated between two major faults, Darouneh to the north and Dashtbyaz to the south. The movements of these faults cased major dislocation of this block.
Mehrab Moradi Noghondar, Mohammad Hassan Karimpour, G. Lang Farmer, Charles R. Stern   +3 more
doaj   +1 more source

Numerical simulations of the mingling caused by a magma intruding a resident mush

Volcanica
Currently, our ability to interpret the mechanics of magma mingling and mixing is limited by an incomplete understanding of the modes of mixing across all melt fractions and compositions.
Alexandre Carrara, Alain Burgisser, George W. Bergantz   +2 more
doaj   +1 more source