Thermal structure and melting conditions in the mantle beneath the Basin and Range province from seismology and petrology

T Plank, DW Forsyth - Geochemistry, Geophysics, Geosystems, 2016 - Wiley Online Library
To better constrain the temperature structure in the upper mantle, we jointly invert seismic
surface wave velocities and basalt thermobarometry. New measurements of the water …

Fabric heterogeneity in the Mojave lower crust and lithospheric mantle in Southern California

RE Bernard, WM Behr - Journal of Geophysical Research: Solid …, 2017 - Wiley Online Library
We use xenoliths from young cinder cones in the eastern Mojave region of Southern
California to investigate deformation fabrics and their implications for strain localization …

Water and oxygen fugacity in the lithospheric mantle wedge beneath the Northern Canadian Cordillera (Alligator Lake)

MKL Kilgore, AH Peslier, AD Brandon… - Geochemistry …, 2018 - Wiley Online Library
Assessing water contents of subduction zone mantle peridotites can gain insight into the
compositions of slab‐derived fluids/melts and the active margin water cycle. Here eight …

Trace element partitioning and Lu–Hf isotope systematics in spinel peridotites from the Rio Grande Rift and Colorado Plateau: Towards improved age assessment of …

BL Byerly, JC Lassiter - Chemical Geology, 2015 - Elsevier
Abstract Our study of Colorado Plateau and Rio Grande rift spinel peridotite xenoliths
determined bulk Lu–Hf budgets and cpx, opx, and whole rock 176 Hf/177 Hf to evaluate the …

Assessing origins of end‐Triassic tholeiites from Eastern North America using hafnium isotopes

LJ Elkins, CM Meyzen, S Callegaro… - Geochemistry …, 2020 - Wiley Online Library
The driving processes responsible for producing the Central Atlantic Magmatic Province, the
Large Igneous Province associated with end‐Triassic rifting of Pangea, remain largely …

Effects of melting, subduction-related metasomatism, and sub-solidus equilibration on the distribution of water contents in the mantle beneath the Rio Grande Rift

LA Schaffer, AH Peslier, AD Brandon, M Bizimis… - … et Cosmochimica Acta, 2019 - Elsevier
The distribution of water in the upper mantle plays a crucial role in the Earth's deep water
cycle, magmatism, and plate tectonics. To better constrain how these large-scale …

Reassessing the role of continental lithospheric mantle in cenozoic magmatism, southwestern North America

GL Farmer - Isotopic constraints on Earth system processes, 2022 - Wiley Online Library
Cenozoic basalts with low ε Nd (T) values (≤+ 3) were recognized in southwest North
America (SWNA) over 30 years ago and triggered an ongoing debate on whether this …

Origin of low Mg# hawaiites carrying peridotite xenoliths from the Cima volcanic field, California, USA: Evidence of rapid magma mixing during ascent along …

SK Brehm, RA Lange - GSA Bulletin, 2023 - pubs.geoscienceworld.org
The Cima volcanic field, in the southern Basin and Range province (California, USA),
includes> 70 eruptive units over the last 8 my The youngest (≤ 1 Ma) are low Mg#(≥ 56) …

Late Cretaceous construction of the mantle lithosphere beneath the central California coast revealed by Crystal Knob xenoliths

DP Quinn, JB Saleeby, MN Ducea… - Geochemistry …, 2018 - Wiley Online Library
Abstract The Pleistocene (1.65 Ma) Crystal Knob volcanic neck in the California Coast
Ranges is an olivine‐plagioclase phyric basalt containing dunite and spinel peridotite …