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Catalogues and Inventories: Monnig collection meteorites from Forestburg, Davy, Harrison Township and Gurram KondaShow simple item record

dc.creatorMcCoy, Tim (Timothy J.)
dc.creatorEhlmann, Arthur J.
dc.date.accessioned2023-06-05T17:48:30Z
dc.date.available2023-06-05T17:48:30Z
dc.date.issued1905-06-19
dc.identifier.urihttps://repository.tcu.edu/handle/116099117/58949
dc.descriptionArticle with photo about the Monnig collection of meteorites and table describing the collection.
dc.relationOscar Monnig Papers (MS 124)
dc.rightsPrior written permission from TCU Special Collections required to use any document or photograph.
dc.sourceSeries III, Box 06, Davy – DeWitt County, 1940-1997 folder
dc.subjectMeteorite
dc.subjectDavy meteorite
dc.subjectDe Witt County (Tex.)
dc.subjectWeiss, Walter J. C., Jr.
dc.subjectNininger, Harvey Harlow
dc.titleCatalogues and Inventories: Monnig collection meteorites from Forestburg, Davy, Harrison Township and Gurram Konda
dc.typeArticle
dc.description.transcriptionCatalogs and Inventories Monnig collection meteorites from Forestburg, Davy, Harrison Township and Gurram Konda T. J. McCOY 1, 2* AND A. J. EHLMANN Code SN4, NASA/Johnson Space Center, Houston, Texas 77058, USA Department of Mineral Sciences, MRC NHB-119, National Museum of Natural History. Smithsonian Institution, Washington, D.C. 20560. USA Department of Geology, Texas Christian University, Fort Worth. Texas 76129, USA *Correspondence author's e-mail address: mccoy.tim@nmnh.si.edu DAVY (a), TEXAS The Monnig collection holds 27 specimens, totaling 50.6 kg, of a meteorite recovered in 1940 from a poorly defined strewnfield generally west of the town of Davy, De Witt County, Texas, USA (29°4°N, 97°40'W) (Table 1). Among these are a single stone of 9.64 kg and numerous fragments as small as 9 g. Apparently, local landowners, alerted to the finding of these stones, gave many of them to Mr. Walter Weiss, who in 1940 August had a total of "89 pounds 9 ounces" (40.6 kg). It is apparent from correspondence that Monnig bought the entire collection from Weiss in 1941 but also accumulated more Davy (a) specimens subsequently. The recovery of these stones was noted by Nininger (1940). Mason (1963) reported an olivine composition of Faz3 for Davy. Graham et al. (1985) classify Davy (a) (which they list as Davy) as an L6 chondrite. The source of the type 6 classification is unknown. Excepting Davy (b) (discussed below), no other chondrites are known from De Witt or adjacent counties. The stones are all similar in their highly weathered appearance. Davy (a) is classified as an L4(S2)W4 ordinary chondrite (Table 2). The olivine composition (Fa22.4) is slightly below the range for L chondrites (Fa22.7-25.6), whereas the low-Ca pyroxene composition (Fs19.3) is within the range for L chondrites (FS18.7-22.6) (Gomes and Keil, 1980). The type 4 classification is indicated by the distinct chondrule outlines, abundant striated low-Ca pyroxene, microcrystalline chondrule mesostases and the Wo content of low-Ca pyroxene (Wo1.1), which is within the range for type 3-4 chondrites (Woo.4-1.2; Scott et al., 1986). The earlier type 6 classification (Graham et al., 1985) is clearly in error. TABLE 2. Chemical, petrologic, shock and weathering data for meteorites studied in this work.


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This item appears in the following Collection(s)
  • Records of the Monnig Meteorite Gallery [2825]
    The files are arranged alphabetically, usually according to the location of discovery of the meteorite. The files contain correspondence and research material on the meteorites in the collection.

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