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Silicate Spherules from Deep-Sea Sediments: Confirmation of Extraterrestrial Origin

Ganapathy, R. and Brownlee, D. E. and Hodge, P. W. (1978) Silicate Spherules from Deep-Sea Sediments: Confirmation of Extraterrestrial Origin. Science, 201 (4361). pp. 1119-1121. ISSN 0036-8075. https://resolver.caltech.edu/CaltechAUTHORS:20151110-143616659

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Abstract

Silicate spherules produced by atmospheric melting of meteoric bodies are probably the most common form of extraterrestrial material on the earth. It has never been possible to positively identify such particles although it has been known for more than a century that silicate spherules of suspected extraterrestrial origin are present in deep-sea sediments. One such spherule has been identified as definitely extraterrestrial since its abundances of nonvolatile trace elements closely match those of primitive solar system material.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1126/science.201.4361.1119DOIArticle
http://www.sciencemag.org/content/201/4361/1119.shortPublisherArticle
http://www.jstor.org/stable/1746322JSTORArticle
Additional Information:© 1978 American Association for the Advancement of Science. Received 13 March 1978; revised 2 May 1978. One of us (R.G.) thanks N. Trivedi, Pfizer, Inc., for the use of the scanning electron microscope and A. J. Barnard, Jr., for helpful discussions. Part of the work was supported by NASA grant NSG-9052 (to D.E.B.).
Funders:
Funding AgencyGrant Number
NASANSG-9052
Issue or Number:4361
Record Number:CaltechAUTHORS:20151110-143616659
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20151110-143616659
Official Citation:Silicate Spherules from Deep-Sea Sediments: Confirmation of Extraterrestrial Origin R. GANAPATHY, D. E. BROWNLEE, and P. W. HODGE Science 22 September 1978: 201 (4361), 1119-1121. [DOI:10.1126/science.201.4361.1119]
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:62039
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:11 Nov 2015 18:40
Last Modified:03 Oct 2019 09:14

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