Earth, Environmental and Planetary Sciences
Recent Submissions
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The speciation of carbon, nitrogen, and water in magma oceans and its effect on volatile partitioning between major reservoirs of the Solar System rocky bodies
(2020)The composition of atmospheres and the resulting potential for planetary habitability in the rocky bodies of our Solar System and beyond is strongly controlled by the volatile exchange between their silicate reservoirs and ... -
Nb/Ta systematics in arc magma differentiation and the role of arclogites in continent formation
(2019)The surfaces of rocky planets are mostly covered by basaltic crust, but Earth is unique in that it also has extensive regions of felsic crust, manifested in the form of continents. Exactly how felsic crust forms when ... -
The Future of Reef Ecosystems in the Gulf of Mexico: Insights From Coupled Climate Model Simulations and Ancient Hot-House Reefs
(2019)Shallow water coral reefs and deep sea coral communities are sensitive to current and future environmental stresses, such as changes in sea surface temperatures (SST), salinity, carbonate chemistry, and acidity. Over the ... -
La Niña-driven flooding in the Indo-Pacific warm pool during the past millennium
(2019)Extreme precipitation events are one of the most consequential components of climate change for society. The El Niño-Southern Oscillation (ENSO) is the dominant mode of precipitation variability in the tropics and causes ... -
Passive Adjoint Tomography of the Crustal and Upper Mantle Beneath Eastern Tibet With a W2‐Norm Misfit Function
(2019)Full waveform tomography is an effective method to obtain high‐resolution subsurface velocity structures. It is, however, difficult for the conventional L2‐norm‐based inversion to reach the global minimum because of ... -
Nb/Ta systematics in arc magma differentiation and the role of arclogites in continent formation
(2019)The surfaces of rocky planets are mostly covered by basaltic crust, but Earth is unique in that it also has extensive regions of felsic crust, manifested in the form of continents. Exactly how felsic crust forms when ... -
Delivery of carbon, nitrogen, and sulfur to the silicate Earth by a giant impact
(2019)Earth’s status as the only life-sustaining planet is a result of the timing and delivery mechanism of carbon (C), nitrogen (N), sulfur (S), and hydrogen (H). On the basis of their isotopic signatures, terrestrial volatiles ... -
In Situ Quantification of Biological N2 Production Using Naturally Occurring 15N15N
(2019)We describe an approach for determining biological N2 production in soils based on the proportions of naturally occurring 15N15N in N2. Laboratory incubation experiments reveal that biological N2 production, whether by ... -
Petrogenesis of the cogenetic Stewart pegmatite-aplite, Pala, California: Regional implications
(2019)The Stewart pegmatite-aplite dike in Pala, California (USA) is well known as a source of lithium, gem minerals, and unusual phosphate minerals. We reinterpret the petrogenesis of the dike based on a combination of new ... -
The DeepMIP contribution to PMIP4: methodologies for selection, compilation and analysis of latest Paleocene and early Eocene climate proxy data, incorporating version 0.1 of the DeepMIP database
(2019)The early Eocene (56 to 48 million years ago) is inferred to have been the most recent time that Earth's atmospheric CO2 concentrations exceeded 1000 ppm. Global mean temperatures were also substantially warmer than those ... -
Seasonal differences in formation processes of oxidized organic aerosol near Houston, TX
(2019)Submicron aerosol was measured to the southwest of Houston, Texas, during winter and summer 2014 to investigate its seasonal variability. Data from a high-resolution time-of-flight aerosol mass spectrometer (HR-ToF-AMS) ... -
Mixed deformation styles observed on a shallow subduction thrust, Hikurangi margin, New Zealand
(2019)Geophysical observations show spatial and temporal variations in fault slip style on shallow subduction thrust faults, but geological signatures and underlying deformation processes remain poorly understood. International ... -
Sedimentary structure of the western Bohai Bay basin and other basins in North China revealed by frequency dependent P-wave particle motion
(2019)High-resolution seismic models of sediment basins are critical inputs for earthquake ground motion prediction and petroleum resource exploration. In this study we employed a newly developed technique that utilizes the ... -
Fracture-induced pore fluid pressure weakening and dehydration of serpentinite
(2019)We investigate the strength, deformation processes, and pore fluid weakening during localized shear of antigorite serpentine. Recent work has shown that some phyllosilicates, including antigorite, undergo a reverse transition ... -
A Framework for Understanding Whole-Earth Carbon Cycling
(2019)Building from the base of knowledge presented in the preceding chapters, this chapter explores how the cycling of carbon in subduction zones and orogenic belts varies with supercontinent cycles and mountain building. It ... -
Melt equilibration depths as sensors of lithospheric thickness during Eurasia-Arabia collision and the uplift of the Anatolian Plateau
(2019)A co-investigation of mantle melting conditions and seismic structure revealed an evolutionary record of mantle dynamics accompanying the transition from subduction to collision along the Africa-Eurasia margin and the >1 ... -
Slip partitioning along an idealized subduction plate boundary at deep slow slip conditions
(2019)Below the base of many subduction seismogenic zones, the plate interface periodically slips at rates 1 to 2 orders of magnitude faster than tectonic plate velocities. A number of competing hypotheses exist to explain the ... -
The redox “filter” beneath magmatic orogens and the formation of continental crust
(2018)The two most important magmatic differentiation series on Earth are the Fe-enriching tholeiitic series, which dominates the oceanic crust and island arcs, and the Fe-depleting calc-alkaline series, which dominates the ... -
Policy support for biochar: Review and recommendations
(2018)Significant evidence has accumulated demonstrating that soil biochar amendment has many environmental benefits; however, adoption has been slow. This raises the question of how to align the environmental benefits with ... -
Fluid Controls on the Heterogeneous Seismic Characteristics of the Cascadia Margin
(2018)The dehydration of oceanic slabs during subduction is mainly thermally controlled and is often expressed as intermediate‐depth seismicity. In warm subduction zones, shallow dehydration can also lead to the buildup of ...
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