Results 31 to 40 of about 3,985 (225)

A pyroclastic flow deposit on Venus [PDF]

Geological Society, London, Special Publications, 2013
Abstract Explosive volcanism on Venus is severely inhibited by its high atmospheric pressure and lack of water. This paper shows that a deposit located near 16°S, 145°E, here referred to as Scathach Fluctus, displays a number of morphological characteristics consistent with a pyroclastic flow deposit.
Ghail, RC, Wilson, L
openaire   +2 more sources

Pyroclastic deposits and volcanic history of Mayor Island

, 1981
The emergent summit of Mayor Island, Bay of Plenty, New Zealand, is a peralkaline rhyolite volcano constructed by: a sequence of lava flows, the Tutaretare Rhyolite Formation(new); and pyroclastic deposits, the Oira Pyroclastite Formation (new).
Nelson, Campbell S., Briggs, Roger M., Buck, M.D.   +2 more
core   +1 more source

Numerical Simulation of Pyroclastic Flow of Karangetang Volcano Based on 2015 Eruption Activity

JGEET: Journal of Geoscience, Engineering, Environment and Technology
On May 7-9, 2015 the eruptive activity of Mount Karangetang released pyroclastic flows towards the Batuawang River for 3.6 km and hit Kora kora village which is located south of the Main Crater. This pyroclastic flow originated from lava flows during the
Willi FS Banggur, Cahya Patria, Estu Kriswati, Mirzam Abdurrachman, Gede Suantika, Devy Kamil Syahbana, Richard Korompis, David Adriansyah, Aditya Gurasali, Alfred Wenas, Kurnia Praja, Imam Sentosa, Iing Kusnadi, Makoto Shimomura   +13 more
doaj   +1 more source

TITAN2D Simulations of Pyroclastic Flows from Small Scale Eruption at Mt. Baekdusan [PDF]

, 2013
Many eruptions of Mt. Baekdusan volcano have been recorded in the historical literatures, and there were unrest precursors in 2002. Based on the geological survey results, it has been recognized that Mt. Baekdusan’s Plinian eruptions had caused ashfall,
Chang, C., Yang, I., Lee, J., Macedonio, G., Yun, S., Lee, K., Kim, S, Kim, S., Kim, Y., Cho, E.   +9 more
core   +1 more source

Observations and modelling of soil slip-debris flow initiation processes in pyroclastic deposits: the Sarno 1998 event [PDF]

Natural Hazards and Earth System Sciences, 2003
Pyroclastic soils mantling a wide area of the Campanian Apennines are subjected to recurrent instability phenomena. This study analyses the 5 and 6 May 1998 event which affected the Pizzo d’Alvano (Campania, southern Italy).
G. B. Crosta, P. Dal Negro
doaj  

A new infrared volcano monitoring using GCOM-C (SHIKISAI) satellite: applications to the Asia-Pacific region

Earth, Planets and Space, 2020
The GCOM-C (SHIKISAI) satellite was developed to understand the mechanisms of global climate change. The second-generation global imager (SGLI) onboard GCOM-C is an optical sensor observing wavelengths from 380 nm to 12.0 μm in 19 bands.
Takayuki Kaneko, Atsushi Yasuda, Kenji Takasaki, Shun Nakano, Toshitsugu Fujii, Yoshiaki Honda, Kouji Kajiwara, Hiroshi Murakami   +7 more
doaj   +1 more source

Experimental study of dense pyroclastic density currents using sustained, gas-fluidized granular flows

, 2014
International audienceWe present the results of laboratory experiments on the behaviour of sustained, dense granular flows in a horizontal flume, in which high-gas pore pressure was maintained throughout the flow duration by continuous injection of gas ...
Druitt, Timothy H., Druitt, Tim, Cas, Ray, Cas, R., Rowley, Pete J., Rowley, Peter James, Roche, Olivier, Rowley, P. J., Druitt, T. H.   +8 more
core   +1 more source

Geomorphological Classification of Monogenetic Volcanoes and Its Implication to Tectonic Stress Orientation in the Middle Atlas Volcanic Field (Morocco)

Land, 2022
The Middle Atlas Volcanic Field (MAVF) covers an area of 1500 km2, with a total erupted volume of solid products (e.g., Dense Rock Equivalent or DRE) estimated to be more than 80 km3.
Mohammed Benamrane, Károly Németh, Mohamed Jadid, El Hassan Talbi   +3 more
doaj   +1 more source

Assessment of motion-induced fluidization of dense pyroclastic gravity currents

Annals of Geophysics, 2005
The paper addresses some fundamental aspects of the dynamics of dense granular flows down inclines relevant to pyroclastic density currents. A simple mechanistic framework is presented to analyze the dynamics of the frontal zone, with a focus ...
P. Salatino
doaj   +1 more source

Geochemical and Geological Investigation of Skarn‐Type Pb–Zn Mineralization in Hastanetepe (Balya‐Balıkesir, Türkiye): An Approach Based on Fluid Inclusions, Sulphur Isotopes and Geochemical Data

Geological Journal, EarlyView.
Integrated petrographic, mineralogical and geochemical data from the Hastanetepe Pb–Zn deposit (Balya, Türkiye) reveal multi‐stage hydrothermal alteration and a magmatic sulphur source. Fluid inclusion and sulphur isotope results indicate a complex fluid evolution responsible for skarn‐type Pb–Zn mineralization along limestone–dacite contacts ...
Esra Ünal‐Çakır
wiley   +1 more source