Louise Bolge
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View article: Transfer of Strontium and Carbon From Subducting Sediment Into the Leading Edge of the Mantle Wedge
Transfer of Strontium and Carbon From Subducting Sediment Into the Leading Edge of the Mantle Wedge Open
Carbon mobilization at subduction zones can be constrained by focusing on Sr as a proxy, as Sr readily substitutes for Ca—a major cation in the crystal structures of carbonates. Unmelted high/ultrahigh pressure (HP/UHP) pelitic metasedimen…
View article: Mafic slab melt contributions to Proterozoic massif-type anorthosites
Mafic slab melt contributions to Proterozoic massif-type anorthosites Open
Massif-type anorthosites, enormous and enigmatic plagioclase-rich cumulate intrusions emplaced into Earth’s crust, formed in large numbers only between 1 and 2 billion years ago. Conflicting hypotheses for massif-type anorthosite formation…
View article: Patagonian dust, Agulhas Current, and Antarctic ice-rafted debris contributions to the South Atlantic Ocean over the past 150,000 years
Patagonian dust, Agulhas Current, and Antarctic ice-rafted debris contributions to the South Atlantic Ocean over the past 150,000 years Open
Disentangling inputs of aeolian dust, ice-rafted debris (IRD), and eroded continental detritus delivered by ocean currents to marine sediments provide important insights into Earth System processes and climate. This study uses Sr-Nd-Pb iso…
View article: Last Interglacial sea level derived from U-series dated fossil corals of the Turks and Caicos Islands
Last Interglacial sea level derived from U-series dated fossil corals of the Turks and Caicos Islands Open
The timing, magnitude, and evolution of sea-level change during the Last Interglacial period (Marine Isotope Stage (MIS) 5e) are subjects of ongoing debate. Previous estimates of global mean sea level (GMSL) generally converged on values o…
View article: Last interglacial global mean sea level from high-precision U-series ages of Bahamian fossil coral reefs
Last interglacial global mean sea level from high-precision U-series ages of Bahamian fossil coral reefs Open
We thank The Bahamas Environment, Science & Technology Commission and many Bahamian people for support of our field work. TanDEM-X digital elevation data are under
\ncopyright by the German Aerospace Center. All rights reserved; used with …
View article: Geodynamic Evolution of the East African Superplume: Insights From Volcanism in the Western Turkana Basin
Geodynamic Evolution of the East African Superplume: Insights From Volcanism in the Western Turkana Basin Open
There is a consensus that volcanism along the East African Rift System (EARS) is related to plume activities. However, because of our limited knowledge of the local lithospheric mantle, the dynamics of the plume are poorly constrained by m…
View article: Provenance of Anthropogenic Pb and Atmospheric Dust to Northwestern North America
Provenance of Anthropogenic Pb and Atmospheric Dust to Northwestern North America Open
Industrial activities release aerosols containing toxic metals into the atmosphere, where they are transported far from their sources, impacting ecosystems and human health. Concomitantly, long-range-transported mineral dust aerosols play …
View article: Deep Sourced Fluids for Peridotite Carbonation in the Shallow Mantle Wedge of a Fossil Subduction Zone: Sr and C Isotope Profiles of OmanDP Hole BT1B
Deep Sourced Fluids for Peridotite Carbonation in the Shallow Mantle Wedge of a Fossil Subduction Zone: Sr and C Isotope Profiles of OmanDP Hole BT1B Open
Completely carbonated peridotites represent a window to study reactions of carbon‐rich fluids with mantle rocks. Here, we present details on the carbonation history of listvenites close to the basal thrust in the Samail ophiolite. We use s…
View article: Evidence for a Northern Hemispheric trigger of the 100,000-y glacial cyclicity
Evidence for a Northern Hemispheric trigger of the 100,000-y glacial cyclicity Open
Significance Causes of the Mid-Pleistocene Transition (MPT) from 41- to 100-ky interglacial–glacial cyclicity are debated because it occurred without changes in solar forcing, thus indicating internal climatic drivers. This study reconstru…
View article: Little Change in Ice Age Water Mass Structure From Cape Basin Benthic Neodymium and Carbon Isotopes
Little Change in Ice Age Water Mass Structure From Cape Basin Benthic Neodymium and Carbon Isotopes Open
A common conception of the deep ocean during ice age episodes is that the upper circulation cell in the Atlantic was shoaled at the Last Glacial Maximum compared to today, and that this configuration facilitated enhanced carbon storage in …
View article: A User‐Friendly Workbook to Facilitate Rapid and Accurate Rare Earth Element Analyses by ICP‐MS for Multispiked Samples
A User‐Friendly Workbook to Facilitate Rapid and Accurate Rare Earth Element Analyses by ICP‐MS for Multispiked Samples Open
The rare earth elements (REEs) are widely used as geochemical tracers in the earth, planetary, and ocean sciences. Inductively coupled plasma‐mass spectrometry (ICP‐MS) has become the method of choice to analyze REE concentrations because …
View article: Glacial-to-interglacial variations in the deep water at the Bermuda Rise inferred from a Nd isotope record covering the last million years
Glacial-to-interglacial variations in the deep water at the Bermuda Rise inferred from a Nd isotope record covering the last million years Open
<p>The formation of North Atlantic Deep Water (NADW) in the North Atlantic is an important modulator of the climate system, as it drives the global termohaline circulation, responsible for the distribution of heat, salts and nutrient…
View article: The role of dispersed ash in orbital-scale time-series studies of explosive arc volcanism: insights from IODP Hole U1437B, Northwest Pacific Ocean
The role of dispersed ash in orbital-scale time-series studies of explosive arc volcanism: insights from IODP Hole U1437B, Northwest Pacific Ocean Open
Tephra fallout beds in marine sediments provide chronologically precise and highly resolved records of volcanism at time scales relevant to Quaternary climate cycles. While the record of discrete (visible) thin tephra beds is readily acces…
View article: The role of dispersed ash in orbital-scale time-series studies of explosive arc volcanism: insights from IODP Hole U1437B, Northwest Pacific Ocean
The role of dispersed ash in orbital-scale time-series studies of explosive arc volcanism: insights from IODP Hole U1437B, Northwest Pacific Ocean Open
Tephra fallout beds in marine sediments provide chronologically precise and highly resolved records of volcanism at time scales relevant to Quaternary climate cycles. While the record of discrete (visible) thin tephra beds is readily acces…