Results 121 to 130 of about 9,762 (210)

Clay mineralogy, chemistry, and diagenesis of late devonian K-bentonite occurrences in northwestern Turkey [PDF]

, 2015
Thin beds of tephra (K-bentonites) formed by the diagenesis of volcanic ash are exposed within the limestone-dolomitic limestone successions of the Yilanli formation at Zonguldak and Bartin in northwestern Turkey.
Bozkaya, Ömer, Göncüoğlu, M.C., Günal-Türkmenoğlu, A., Okuyucu, C., Yilmaz, İ.Ö., Ünlüce, Ö.   +5 more
core   +1 more source

Morphology and formation of glassy volcanic ash from the August 12-15, 1991 eruption of Hudson Volcano, Chile

Latin American Journal of Sedimentology and Basin Analysis
The 1991 explosive eruption of Hudson volcano in Chile ejected about 2.7 km³ (DRE) of basalt and trachyandesite magma as tephra fall. A majority of the fallout occurred from an eruption during the period August 12-15, 1991, producing an extensive deposit
Roberto A. Scasso, Steven Carey
doaj  

Rare earth element geochemistry of the Late Quaternary tephra and volcano-clastic sediments from the Pachuca sub-basin, north-eastern Basin of Mexico [PDF]

Geofísica Internacional, 2010
Chondrite normalized REE patterns, fractionations of light (La/Sm), heavy (Gd/Yb) and total (La/Yb) REE and Eu anomalies of the Late Quaternary multi-layer tephra fall deposits and overlying volcano-clastic sediments deposited in the Pachuca sub-basin ...
R. Lozano, E. Hernández-Álvarez, T. Pi, P. D. Roy, O. Morton-Bermea   +4 more
doaj  

Landslides in sensitive soils, Tauranga, New Zealand. [PDF]

, 2013
In the Tauranga region sensitive soil failures commonly occur after heavy rainfall events, causing considerable infrastructure damage. Several notable landslides include a large failure at Bramley Drive, Omokoroa in 1979, the Ruahihi Canal collapse in ...
Cunningham, Michael J., Jorat, M.E., Lowe, David J., Moon, Vicki G., Morz, T., Wyatt, Justin Burns   +5 more
core   +1 more source

Potential atmospheric impact of the Toba Mega‐Eruption ∼71,000 years ago [PDF]

, 1996
An ∼6‐year long period of volcanic sulfate recorded in the GISP2 ice core about 71,100 ± 5000 years ago may provide detailed information on the atmospheric and climatic impact of the Toba mega‐eruption. Deposition of these aerosols occur at the beginning
Mayewski, Paul A., Meeker, L. David, Taylor, Kendrick C., Twickler, Mark S., Whitlow, Sallie I., Zielinski, Gregory A.   +5 more
core   +3 more sources

Changes of sub-fossil chironomid assemblages associated with volcanic sediment deposition in an Andean lake (38°S), Chile Cambios en las asociaciones sub-fósiles de quironómidos, producto de la depositación de sedimentos volcánicos en un lago andino (38°S), Chile

Revista Chilena de Historia Natural, 2007
Chironomid assemblages and sedimentological parameters (grain size, organic content, mineralogy) of a short sediment core from Lake Galletué (38°41' S, 71°17' W) were analysed.
ALBERTO ARANEDA, FABIOLA CRUCES, LAURA TORRES, SEBASTIEN BERTRAND, NATHALIE FAGEL, HANS C TREUTLER, LUIS CHIRINOS, RICARDO BARRA, ROBERTO URRUTIA   +8 more
doaj  

Morphology and formation of glassy volcanic ash from the August 12-15, 1991 eruption of Hudson Volcano, Chile

Latin American Journal of Sedimentology and Basin Analysis, 2005
The 1991 explosive eruption of Hudson volcano in Chile ejected about 2.7 km³ (DRE) of basalt and trachyandesite magma as tephra fall. A majority of the fallout occurred from an eruption during the period August 12-15, 1991, producing an extensive deposit
Roberto A. Scasso, Steven Carey
doaj  

Proceedings of a Workshop on Antarctic Meteorite Stranding Surfaces [PDF]

The discovery of large numbers of meteorites on the Antarctic Ice Sheet is one of the most exciting developments in polar science in recent years. The meteorites are found on areas of ice called stranding surfaces.
Cassidy, W. A., Whillans, I. M.
core   +1 more source

Tephra seismites-Understanding seismic hazard of hidden faults by analyzing liquefied tephra layers in lakes. [PDF]

Sci Adv
Kluger MO, Melchert RA, Moratalla JM, Ilanko T, Lowe DJ, Moon VG, Villamor P, Chaneva J, Ross N, Orense RP.   +9 more
europepmc   +1 more source

Tephra-mediated manganese cycling shapes coral responses to coastal sedimentation. [PDF]

Sci Rep
Förster F, Ferrier-Pagès C, Fries A, Joseph E, Sheldrake TE.   +4 more
europepmc   +1 more source