Paleomagnetic results for the Middle-Miocene continental Suchilquitongo Formation, Valley of Oaxaca, southeastern Mexico [PDF]
Geofísica Internacional, 2001 The Suchilquitongo Formation of the northeastern Valley of Oaxaca is a thick sequence of thin-bedded tuffaceous sandstones and siltstones, which locally contain Hemingfordian mammal fauna, and interbedded lacustrine limestones and rhyolitic tuffs (Etla ...
I. Ferrusquía-Villafranca +1 more
doaj
Source of the Glencoe Ignimbrites [PDF]
Nature, 1963 IGNIMBRITES1,2 are a characteristic component of the typically post-orogenic basalt–andesite–rhyolite volcanic association. These pyroclastic deposits are now generally accepted2 as having been produced by eruptions of nuees ardentes in which solid particles, both rock and crystal fragments, glass shards and pumice fragments are suspended by turbulent ...
openaire +1 more source
Chronology of fans and terraces in the Galatea Basin [PDF]
, 1968 Air-borne volcanic ash beds are used to date fans and terraces in the Galatea Basin and to outline the depositional history of this part of the Rangitaiki Valley.
Pain, C.F., Pullar, W.A.
core +1 more source
BSGF - Earth Sciences BulletinTephrostratigraphy in marine cores is an important tool for dating sedimentary sequences along the North Atlantic and in Western Europe. Most previously analyzed marine tephra were produced by Icelandic volcanoes, albeit rarely from the Krafla volcano ...
Van Vliet-Lanoë Brigitte +4 more
doaj +1 more source
LANDSAT (ERTS) used as a basis for geological volcanological mapping in the central Andes [PDF]
LANDSAT images of the central Andes (N-Chile, W-Bolivia) were effectively used for volcanological mapping of an area about 160,000 km. The map shown exhibits more and better details than the older small scale geological maps of that area. Even on a scale
Brockman, C. E., Kussmaul, S.
core +1 more source
Cenozoic sedimentary and volcanic rocks of New Zealand: A reference volume of lithology, age and paleoenvironments with maps (PMAPs) and database. [PDF]
, 2015 This volume presents descriptive geological data and text about each Cenozoic sedimentary and volcanic geological unit to formation and member level (in some cases) exposed on land in New Zealand, including their lithology, stratigraphic age and inferred
Kamp, Peter J.J. +2 more
core +1 more source
, 2014 In this study we present luminescence investigations of four samples of loess bracketing the Campanian Ignimbrite/Y5 tephra at the Rasova-Valea cu Pietre site, on the eastern bank of the Danube River, southeastern Romania. Investigations involved SAR-OSL
V. Anechitei-Deacu +4 more
semanticscholar +1 more source
Discovery of halloysite books in a ~270,000 year-old buried tephra deposit in northern New Zealand [PDF]
, 2010 As part of a wider study examining the geomechanical properties, especially sensitivity, of sequences of Quaternary pyroclastic and associated deposits and buried soils in the landslide-prone western Bay of Plenty area near Tauranga, eastern North Island,
Churchman, G. Jock +3 more
core
Dynamics of pyroclastic density currents : : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Earth Sciences at Massey University, Palmerston North, New Zealand [PDF]
, 2016 Listed in 2016 Dean's List of Exceptional ThesesPyroclastic density currents (PDCs) are the most dangerous mass flows on Earth. Yet they remain poorly understood because internal measurements and observations are hitherto non-existent.
Breard, Eric Christophe Pascal
core
Effect of Salt Mist Ageing on the Physical and Mechanical Properties of Two Ignimbrites from the Canary Islands (Spain). [PDF]
Materials (Basel), 2023 Valido JA +3 more
europepmc +1 more source