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Karen Ziegler

Researcher at University of New Mexico

Publications -  78
Citations -  4817

Karen Ziegler is an academic researcher from University of New Mexico. The author has contributed to research in topics: Meteorite & Chondrite. The author has an hindex of 25, co-authored 75 publications receiving 4311 citations. Previous affiliations of Karen Ziegler include University of California, Los Angeles & Washington University in St. Louis.

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Journal ArticleDOI

Comet 81P/Wild 2 under a microscope.

Donald E. Brownlee, +185 more
- 15 Dec 2006 - 
TL;DR: The Stardust spacecraft collected thousands of particles from comet 81P/Wild 2 and returned them to Earth for laboratory study, and preliminary examination shows that the nonvolatile portion of the comet is an unequilibrated assortment of materials that have both presolar and solar system origin.
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Chelyabinsk airburst, damage assessment, meteorite recovery, and characterization

O. P. Popova, +61 more
- 29 Nov 2013 - 
TL;DR: The asteroid impact near the Russian city of Chelyabinsk on 15 February 2013 was the largest airburst on Earth since the 1908 Tunguska event, causing a natural disaster in an area with a population exceeding one million.
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Biological control of terrestrial silica cycling and export fluxes to watersheds

TL;DR: Soil water in basaltic soils across the Hawaiian islands is analysed to assess the relative contributions of weathering and biogenic silica cycling by using the distinct signatures of the two processes in germanium/silicon ratios.
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Isotopic Compositions of Cometary Matter Returned by Stardust

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.
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The impact of climate on the biogeochemical functioning of volcanic soils

TL;DR: In this article, the authors sampled 16 soil profiles along an arid to humid climosequence on Kohala Mountain, Hawaii, and found that weathering and soil properties change in a nonlinear fashion with increased rainfall.