Sujoy Mukhopadhyay

TL;DR: In this paper, the authors present observational estimates of desert dust based on pa- leodata proxies showing a doubling of the amount of dust during the 20th century over much, but not all the globe.

TL;DR: Hydrogen, carbon, nitrogen, and oxygen isotopic compositions are heterogeneous among comet 81P/Wild 2 particle fragments; however, extreme isotopic anomalies are rare, indicating that the comet is not a pristine aggregate of presolar materials.

TL;DR: New noble gas measurements from an Icelandic OIB reveal differences in elemental abundances and 20Ne/22Ne ratios between the Iceland mantle plume and the MORB source, showing that Earth’s mantle accreted volatiles from at least two separate sources and that neither the Moon-forming impact nor 4.45 billion years of mantle convection has erased the signature of Earth's heterogeneous accretion and early differentiation.

TL;DR: It is shown that hydrogen and nitrogen isotopic compositions in carbonaceous chondrite organic matter reach and even exceed those found in interplanetary dust particles, preserving primitive organics that were a component of the original building blocks of the solar system.

TL;DR: High-precision tungsten isotopic data from rocks from two large igneous provinces, the North Atlantic Igneous Province and the Ontong Java Plateau, reveal preservation to the Phanerozoic of tung sten isotopic heterogeneities in the mantle, indicating that portions of the mantle that formed during Earth's primary accretionary period have survived to the present.