Linear Vent Area of the Soldier Meadow Tuff, an Ash-Flow Sheet in Northwestern Nevada

Korringa, Marjorie K.

doi:10.1130/0016-7606(1973)84<3849:lvaots>2.0.co;2

Cited by 33 publications

(33 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The change in tectonic stress has been claimed as trigger of large ignimbrite eruptions or for controlling the eruptive style of explosive eruptions (Korringa, 1973;Aguirre-Díaz and LabartheHernandez, 2003;Miller and Wark, 2008;Costa et al, 2011). The first order influence of far-field stress (σ ff ) on eruption triggering was investigated using numerical simulations, which demonstrated how the combined effect of crustal extension and magma chamber overpressure can sustain linear dyke-fed explosive eruptions with mass fluxes in excess of 10 10 kg/s from shallow-seated (4-6 km depth) chambers affected by extensional stress regime (Costa et al, 2011).…”

Section: Non-seismic Changes In Regional Stress Fieldmentioning

confidence: 99%

Influence of Stress Field Changes on Eruption Initiation and Dynamics: A Review

Sulpizio

Massaro

2017

Front. Earth Sci.

View full text Add to dashboard Cite

We review here three main (first-order) mechanisms of stress variation able to influence the triggering of volcanic eruptions and the possible impact on eruption dynamics. They are short-and long-term unloading, seismic energy effects, and changes in far field stress due to geodynamic processes. We present an equilibrium equation for rupture of magma chamber and opening of a dyke up to the surface, taking into account the contribution of each mechanism within the equation. The equation considers the effect of possible superimposition of the three mechanisms with internal processes to the magmatic system, and it is also used for discussing the possible influence on eruption dynamics. The different possible contribution to the eruption triggering are discussed for each mechanism, highlighting how, in many cases, a single mechanism alone is not sufficient for driving eruptive activity if the magmatic system is not close to eruptive conditions.

show abstract

Section: Non-seismic Changes In Regional Stress Fieldmentioning

confidence: 99%

Influence of Stress Field Changes on Eruption Initiation and Dynamics: A Review

Sulpizio

Massaro

2017

Front. Earth Sci.

View full text Add to dashboard Cite

show abstract

“…Dykes feeding these eruptions have to be long enough and remain open over much of their length throughout the entire explosive activity. The mechanics of feeding explosive silicic ignimbrite eruptions through a linear fissure (Korringa, 1973;Aguirre-Díaz and Labarthe-Hernañdez, 2003) or from multiple vents along a fissure (Suzuki-Kamata et al, 1993;Wilson, 2001;Smith et al, 2005Smith et al, , 2006Folch and Martí, 2009) are largely unexplored.…”

Section: Introductionmentioning

confidence: 99%

Stress Field Control during Large Caldera-Forming Eruptions

Costa

Martı́

2016

Front. Earth Sci.

View full text Add to dashboard Cite

Crustal stress field can have a significant influence on the way magma is channeled through the crust and erupted explosively at the surface. Large Caldera Forming Eruptions (LCFEs) can erupt hundreds to thousands of cubic kilometers of magma in a relatively short time along fissures under the control of a far-field extensional stress. The associated eruption intensities are estimated in the range 10 9 -10 11 kg/s. We analyse syn-eruptive dynamics of LCFEs, by simulating numerically explosive flow of magma through a shallow dyke conduit connected to a shallow magma (3-5 km deep) chamber that in turn is fed by a deeper magma reservoir (>∼10 km deep), both under the action of an extensional far-field stress. Results indicate that huge amounts of high viscosity silicic magma ( 10 7 > Pa s) can be erupted over timescales of a few to several hours. Our study provides answers to outstanding questions relating to the intensity and duration of catastrophic volcanic eruptions in the past. In addition, it presents far-reaching implications for the understanding of dynamics and intensity of large-magnitude volcanic eruptions on Earth and to highlight the necessity of a future research to advance our knowledge of these rare catastrophic events.

show abstract

“…The mechanisms for crystal-glass separation in ash flows are less clear and probably involve preferential escape of vitric dust from the pyroclastic flow (Walker, 1972). Crystal-glass fractionation has been documented for ash-flow sheets from the Aso caldera (Lipman, 1967), John Day Formation (Fisher, 1966), and the Soldier Meadow Tuff (Korringa, 1973).…”

Section: Lateral Chemical Variationsmentioning

confidence: 86%

“…;Sargent, 1969). Korringa (1973) used selected trace elements to demonstrate a close genetic relation between ash-flow tuffs and chemically and petrographically identical lavas that subsequently were erupted from the same vents. Gibson (1972) showed that pantelleritic ash-flow tuffs from Fantale volcano in Ethiopia were indistinguishable from lavas emanating from the same vent.…”

Section: Source Of the Los Chocoyos Ashmentioning

confidence: 99%

Geochemical correlation of genetically related rhyolitic ash-flow and air-fall ashes, central and western Guatemala and the equatorial Pacific

Hahn¹,

Rose²,

Meyers³

1979

Geological Society of America Special Papers

View full text Add to dashboard Cite

Upper Pleistocene rhyolitic ash-flow and air-fall tuffs, erupted from several centers, were sampled in 23 pumice-filled basins over an area of 16,000 km 2 . Fifty pumice-matrix samples were analyzed for as many as 20 trace elements. Ba, Fe, Hf, Rb, Sm, Sr, Th, Ti, and Zr were particularly useful in "fingerprinting" correlations between basins and in corroborating the stratigraphy previously established within individual basins.

show abstract

Linear Vent Area of the Soldier Meadow Tuff, an Ash-Flow Sheet in Northwestern Nevada

Cited by 33 publications

References 0 publications

Influence of Stress Field Changes on Eruption Initiation and Dynamics: A Review

Influence of Stress Field Changes on Eruption Initiation and Dynamics: A Review

Stress Field Control during Large Caldera-Forming Eruptions

Geochemical correlation of genetically related rhyolitic ash-flow and air-fall ashes, central and western Guatemala and the equatorial Pacific

Contact Info

Product

Resources

About