Results 121 to 130 of about 25,642 (273)

Widely dispersed Quaternary tephra in Africa

open access: yesGlobal and Planetary Change, 1999
Abstract Several prominent widespread Pleistocene tephra layers have been recognised and correlated across northern Kenya, Ethiopia and Uganda. A single unit has been correlated between Lake Turkana and the Gulf of Aden. Each of these tephra units represents the products of an eruption of at least 4 km3 of magma. The number of active volcanoes within
openaire   +3 more sources

Krasheninnikov Caldera (Eastern Kamchatka): age and magnitude of eruption

open access: yesВестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле
New data on the composition of the pyroclastic deposits of the Krasheninnikov caldera allowed us to correlate it to the previously studied tephra horizon Geys30, which until recently was erroneously attributed to an eruption within the Geysernaya caldera.
V.V. Ponomareva   +5 more
doaj   +1 more source

Dynamics, Monitoring, and Forecasting of Tephra in the Atmosphere

open access: yesReviews of Geophysics
AbstractExplosive volcanic eruptions inject hot mixtures of solid particles (tephra) and gasses into the atmosphere. Entraining ambient air, these mixtures can form plumes rising tens of kilometers until they spread laterally, forming umbrella clouds. While the largest clasts tend to settle in proximity to the volcano, the smallest fragments, commonly ...
Pardini, F.   +7 more
openaire   +2 more sources

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

open access: yes, 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.   +5 more
core   +1 more source

Distribution of Quaternary Tephra in Japan

open access: yesThe Quaternary Research (Daiyonki-Kenkyu), 1963
The Japanese Committee on Tephrochronology made a distribution map of the Quaternary volcanic products in Japan (Fig. 1, original scale :1/2, 000, 000). As the compiler of this map, the author gives some descriptive notes about the distribution and the related problems.1.
openaire   +2 more sources

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