Luhr, James, San Luis Potosi (SLP), Durango (DGO), 1987-1988

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This notebook documents the work of James Luhr in relation to his volcanology research in San Luis Potosi and Durango during May 16, 1987 - December 10, 1990. Notebook entries provide information on: dates, directions to the collection site (occasionally, map information e.g. Map F14 A34), type of activity, deposit information. Specimen information includes: specimen identifier(e.g. SLP-155), type of rock, color, density, inclusions (e.g. lherzolite, pyroxenite & granolite xenoliths in the lava sample), density, photo information, some instances of stratigraphic illustrations about the specimen. Another data set present in the notebook includes a table with indicators (e.g. LC 118° = 9 cm thick). Some notes on logistics of the trip are included and dated by September 20,1992. Lherzolite is mentioned throughout the notebook. Some entries are written in the form of narrative.

Date Range


Start Date

May 16, 1987

End Date

Sep 12, 1992

Access Information

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  • Geology
  • Volcanology
  • Lherzolite


  • Durango
  • Mexico
  • San Luis Potosí


  • Fieldbook record
  • Field notes

Accession #

SIA Acc. 16-255

Collection name

National Museum of Natural History (U.S.), Department of Mineral Sciences, Curatorial Records, 1940-2016

Physical Description

field book

Physical Location

Smithsonian Institution Archives


Box 3 folder 12