Timing of Quaternary geomagnetic reversals and excursions in volcanic and sedimentary archives
We review the ages of Quaternary magnetic polarity reversals and magnetic excursions.
Improvements in radioisotopic 40 Ar/39 Ar dating of reversals and excursions reflect the use …
Improvements in radioisotopic 40 Ar/39 Ar dating of reversals and excursions reflect the use …
Seismic perspectives from the western US on magma reservoirs underlying large silicic calderas
Abstract Since 1.25 Ma, three volcanic systems in the western US Cordillera hosted rhyolitic
eruptions of≳ 300 km 3 dense rock equivalent creating the Yellowstone (0.63 Ma), Long …
eruptions of≳ 300 km 3 dense rock equivalent creating the Yellowstone (0.63 Ma), Long …
Age of the Lava Creek supereruption and magma chamber assembly at Yellowstone based on 40Ar/39Ar and U‐Pb dating of sanidine and zircon crystals
NE Matthews, JA Vazquez… - Geochemistry …, 2015 - Wiley Online Library
The last supereruption from the Yellowstone Plateau formed Yellowstone caldera and
ejected the> 1000 km3 of rhyolite that composes the Lava Creek Tuff. Tephra from the Lava …
ejected the> 1000 km3 of rhyolite that composes the Lava Creek Tuff. Tephra from the Lava …
Rapid heterogeneous assembly of multiple magma reservoirs prior to Yellowstone supereruptions
Large-volume caldera-forming eruptions of silicic magmas are an important feature of
continental volcanism. The timescales and mechanisms of assembly of the magma …
continental volcanism. The timescales and mechanisms of assembly of the magma …
Regional chronostratigraphic synthesis of the Cenomanian-Turonian oceanic anoxic event 2 (OAE2) interval, Western Interior Basin (USA): New Re-Os …
Fluctuations in depositional conditions during the onset of severe climate events in Earth
history predispose stratigraphic archives to hiatuses, often hindering complete …
history predispose stratigraphic archives to hiatuses, often hindering complete …
Mechanisms and timescales of generating eruptible rhyolitic magmas at Yellowstone caldera from zircon and sanidine geochronology and geochemistry
ME Stelten, KM Cooper, JA Vazquez… - Journal of …, 2015 - academic.oup.com
We constrain the physical nature of the magma reservoir and the mechanisms of rhyolite
generation at Yellowstone caldera via detailed characterization of zircon and sanidine …
generation at Yellowstone caldera via detailed characterization of zircon and sanidine …
[HTML][HTML] High-precision zircon age spectra record the dynamics and evolution of large open-system silicic magma reservoirs
The emplacement history and thermal evolution of subvolcanic magma reservoirs determine
their longevity, size, and ability to feed volcanic eruptions. As zircon saturation is dependent …
their longevity, size, and ability to feed volcanic eruptions. As zircon saturation is dependent …
Incremental heating of Bishop Tuff sanidine reveals preeruptive radiogenic Ar and rapid remobilization from cold storage
Accurate and precise ages of large silicic eruptions are critical to calibrating the geologic
timescale and gauging the tempo of changes in climate, biologic evolution, and magmatic …
timescale and gauging the tempo of changes in climate, biologic evolution, and magmatic …
Timescales and thermal evolution of large silicic magma reservoirs during an ignimbrite flare-up: perspectives from zircon
Abstract Four voluminous ignimbrites (150–500 km 3) erupted in rapid succession at 27 Ma
in the central San Juan caldera cluster, Colorado. To reconstruct the timescales and thermal …
in the central San Juan caldera cluster, Colorado. To reconstruct the timescales and thermal …
A Bayesian age from dispersed plagioclase and zircon dates in the Los Chocoyos ash, Central America
The eruption that produced the modern Atitlán caldera in Guatemala has a Volcanic
Explosivity Index (VEI)> 8, making it the largest of the Quaternary in the Central American …
Explosivity Index (VEI)> 8, making it the largest of the Quaternary in the Central American …