A uniform isotopic and chemical signature of dust exported from Patagonia: Rock sources and occurrence in southern environments [PDF]
, 2007 Patagonia is considered to be the most important source of dust from South America that is deposited in surrounding areas, and we present here a systematic Sr and Nd isotopic study of sediment currently being exported.
Brunet, Frédéric +3 more
core +3 more sources
Hiroshi Machida −respected tephrochronologist, teacher, leader [PDF]
, 2011 Professor Emeritus Hiroshi Machida (Hiroshi hereafter) is the leading tephrochronologist of his generation in Japan. Perhaps more than any other geoscientist from Japan, Hiroshi carried the insights and advances of tephra studies and their application in
Lowe, David J. +2 more
core +2 more sources
A 100-year record of North Pacific volcanism in an ice core from Eclipse icefield, Yukon Territory, Canada [PDF]
, 2003 A record of regionally significant volcanic eruptions in the North Pacific over the last century has been developed using a glaciochemical record from Eclipse Icefield, Yukon Territory, Canada.
Germani, Mark S +2 more
core +3 more sources
Geochemistry and petrogenesis of volcanic rocks from Daimao Seamount (South China Sea) and their tectonic implications [PDF]
, 2015 The South China Sea (SCS) experienced three episodes of seafloor spreading and left three fossil spreading centers presently located at 18°N, 17°N and 15.5°N.
Castillo, P +5 more
core +2 more sources
CO2-crystal wettability in potassic magmas. Implications for eruptive dynamics in light of experimental evidence for heterogeneous nucleation. [PDF]
, 2017 The volatile content in magmas is fundamental for the triggering and style of volcanic eruptions. Carbon dioxide, the second most abundant volatile component in magmas after H2O, is the first to reach saturation upon ascent and depressurization.
Fanara, S. +4 more
core +1 more source
Models of explosive volcanism [PDF]
Nonlinear Processes in Geophysics, 1995 Abstract. We describe a series of models which illustrate the controls upon the evolution of an erupting mixture of ash and gas during an explosive volcanic eruption. For large eruption rates, material typically issues from a crater as a supersonic jet which may entrain and heat sufficient air to become buoyant and form a Plinian eruption column.
Woods, A. W. +2 more
openaire +4 more sources
SO2 emissions from basaltic eruptions, and the excess sulfur issue [PDF]
, 2004 Volcanic SO2 can affect the Earth's environment. Where no direct measurements of SO2 in the atmosphere are available, a petrologic method of assessing sulfur release from the magma must be used.
Blake, S. +3 more
core +1 more source
European climate response to tropical volcanic eruptions over the last half millennium [PDF]
, 2007 We analyse the winter and summer climatic signal following 15 major tropical volcanic eruptions over the last half millennium based on multi-proxy reconstructions for Europe. During the first and second post-eruption years we find significant continental
Adams +46 more
core +2 more sources
Ice core evidence for a second volcanic eruption around 1809 in the Northern Hemisphere [PDF]
, 2006 A volcanic signal observed in ice cores from both polar regions six years prior to Tambora is attributed to an unknown tropical eruption in 1809. Recovery of dacitic tephra from the 1809 horizon in a Yukon ice core (Eclipse) that is chemically distinct ...
Germani, Mark S +4 more
core +3 more sources
Constructional Volcanic Edifices on Mercury: Candidates and Hypotheses of Formation [PDF]
, 2018 Mercury, a planet with a predominantly volcanic crust, has perplexingly few, if any, constructional volcanic edifices, despite their common occurrence on other solar system bodies with volcanic histories.
Balme, Matthew R. +3 more
core +3 more sources