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FORMATION OF CALICHE IN SITU

1965; Geological Society of America; Volume: 76; Issue: 12 Linguagem: Inglês

10.1130/0016-7606(1965)76[1387

1943-2674

H.R. Blank, EUGENE W. TYNES,

Geological and Geochemical Analysis

Research Article| December 01, 1965 FORMATION OF CALICHE IN SITU HORACE R BLANK; HORACE R BLANK DEPT. GEOLOGY AND GEOGRAPHY, TEXAS A. & M. UNIVERSITY, COLLEGE STATION, TEXAS 77843 Search for other works by this author on: GSW Google Scholar EUGENE W TYNES EUGENE W TYNES CONSULTING GEOLOGIST, 211 NORTH ERVAY BLDG., DALLAS, TEXAS 75201 Search for other works by this author on: GSW Google Scholar Author and Article Information HORACE R BLANK DEPT. GEOLOGY AND GEOGRAPHY, TEXAS A. & M. UNIVERSITY, COLLEGE STATION, TEXAS 77843 EUGENE W TYNES CONSULTING GEOLOGIST, 211 NORTH ERVAY BLDG., DALLAS, TEXAS 75201 Publisher: Geological Society of America Received: 16 Feb 1965 First Online: 02 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Copyright © 1965, The Geological Society of America, Inc. Copyright is not claimed on any material prepared by U.S. government employees within the scope of their employment. GSA Bulletin (1965) 76 (12): 1387–1391. https://doi.org/10.1130/0016-7606(1965)76[1387:FOCIS]2.0.CO;2 Article history Received: 16 Feb 1965 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation HORACE R BLANK, EUGENE W TYNES; FORMATION OF CALICHE IN SITU. GSA Bulletin 1965;; 76 (12): 1387–1391. doi: https://doi.org/10.1130/0016-7606(1965)76[1387:FOCIS]2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract Within a 100-mile radius of Junction, Kimble County, Texas, secondary calcium carbonate, commonly called caliche, occurs (1) as soft pulverulent material at small folds and collapse structures in limestone and at certain outcrops of calcareous shales and spongy dolomites, (2) as adherent coatings on limestone boulders lying on poorly drained surfaces, and (3) as the well-known duricrust deposits cementing limestone gravel and colluvial rubble.Field observations of the lateral gradation of limestone strata into soft caliche and petrographic evidence of the replacement of coarse calcite by microcrystalline calcium carbonate in coated boulders indicate that in the first two types of occurrence the caliche has not been brought in from overlying soil or rocks by migrating water but has formed in place by solution and reprecipitation of calcium carbonate as a result of alternate wetting and drying of the limestone. The senior author tried unsuccessfully to duplicate this process in the laboratory.Small anticlines having arches filled with caliche, southeast of Junction, resemble the "pseudo-anticlines" in Mexico described by Price, but evidence of the in situ formation of the caliche suggests that the folding may have been caused by the expansion accompanying hydration of anhydrite associated with the Kirschberg Evaporite of Barnes, and that the caliche is the result rather than the cause of the distortion and folding of the limestone. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.