{"author": "Michael Ed. Hohn, Donald W. Neal, and J. J. Renton", "creator_user_id": "ff823508-812b-42c6-88e7-7c82e20ab42c", "id": "598f9231-306e-438e-bceb-8e4b4a0a59f1", "metadata_created": "2014-07-03T14:06:01.414118", "metadata_modified": "2014-07-03T14:11:37.713624", "name": "inorganic-geochemistry-of-devonian-shales-in-southern-west-virginia", "notes": "Samples of cuttings from twenty-one wells and a core from a single well in southern West Virginia were analyzed for major and minor elements: silicon, aluminum, iron, magnesium, calcium, sodium, titanium, phosphorus, manganese, sulfur, zinc, and strontium. Stratigraphic and geographic controls on elemental abundances were studied through canonical correlations, factor analyses, and trend surface analyses, The most abundant elements, silicon and aluminum, show gradual trends through the stratigraphic column of most wells, with silicon increasing and aluminum decreasing up-section. Other elements such as calcium, sulfur, and titanium change abruptly in abundance at certain stratigraphic boundaries. Important geographic trends run east-west: for instance, one can see an increase in sulfur and a decrease in titanium to the west; and a decrease in silicon from the east to the central part of the study area, then an increase further west. Although observed vertical trends in detrital minerals and geographic patterns in elemental abundances agree with the accepted view of a prograding delta complex during Late Devonian time, geographically-local, time restricted depositional processes influenced elemental percentages in subsets of the wells and the stratigraphic intervals studied. The black shales of lower Huron age do not represent simply a return of depositional conditions present in the earlier Rhinestreet time; nor do the gray shales of the Ohio Shale represent the same environmental conditions as the Big White Slate.", "num_resources": 0, "num_tags": 5, "package_reviewed": true, "private": false, "state": "active", "title": "INORGANIC GEOCHEMISTRY OF DEVONIAN SHALES IN SOUTHERN WEST VIRGINIA: GEOGRAPHIC AND STRATIGRAPHIC TRENDS", "type": "dataset", "extras": [{"key": "citation", "value": "Yael Tucker, INORGANIC GEOCHEMISTRY OF DEVONIAN SHALES IN SOUTHERN WEST VIRGINIA: GEOGRAPHIC AND STRATIGRAPHIC TRENDS, 2014-07-03, https://edx.netl.doe.gov/dataset/inorganic-geochemistry-of-devonian-shales-in-southern-west-virginia"}, {"key": "netl_product", "value": "no"}, {"key": "organization_acronym", "value": "WVGES"}, {"key": "spatial", "value": "{\"type\":\"MultiPolygon\",\"coordinates\": [[[[-81.665886, 37.20491], [-81.83889, 37.285503], [-82.29562, 37.66906], [-82.500206, 37.92226], [-82.646126, 38.14633], [-82.647156, 38.169437], [-82.598236, 38.368465], [-82.5866, 38.412518], [-80.667725, 40.582138], [-80.63734, 40.613983], [-80.61155, 40.620064], [-80.522, 40.637203], [-77.84241, 39.605373], [-77.77155, 39.498116], [-77.737236, 39.396194], [-77.72747, 39.317795], [-77.820045, 39.141724], [-77.83068, 39.132183], [-80.28792, 37.51115], [-80.42538, 37.434906], [-80.967896, 37.29179], [-81.22293, 37.240215], [-81.556656, 37.206352], [-81.665886, 37.20491]]]]}"}], "resources": [{"id": "8d6964ef-2b28-4d4a-a9de-b61b1d6d8212", "package_id": "598f9231-306e-438e-bceb-8e4b4a0a59f1", "revision_id": "7ff74d8e-feef-33eb-342d-c31e6a7fbd79", "url": "https://edx.netl.doe.gov/storage/f/edx/2014/07/2014-07-03T14:06:22.812Z/aeda7bda-f9c0-40c3-afbc-ac3ac1540471/egs-inorganic-geochemistry-of-devonian-shales-in-southern-west-v.pdf", "format": "PDF", "description": "A recent study of stratigraphic relationships within the Devonian shale\r\nof southern West Virginia was accompanied by the sampling of cuttings from selected wells for elemental analyses (Neal, 1979). Observed distributions of major and minor elements provide means for confirming the stratigraphic work and for constructing a depositional model of the Devonian sediments in the study areas and adjacent regions. The sampling procedure exhibits elemental distributions within stratigraphic units over a geographic area, and among stratigraphic units in some of the wells. Possible trends or patterns in element distributions include: 1) abrupt changes at stratigraphic boundaries; 2) agreement between stratigraphic units and elemental distributions; 3) consistent increase cx decrease in elemental percentages through the stratigraphic range studied;4) constant matrix of correlation coefficients among elements throughout the stratigraphic or geographic range; and 5) geographic trends that parallel lithologic facies. Blackburn -e-t al (1977) mapped the distribution of elements in outcrops of Devonian shales in Kentucky. The large number of data in the present study required use of multivariate statistics in addition to the mapping of element distributions.", "hash": "", "position": 0, "name": "EGS-Inorganic Geochemistry of Devonian Shales in Southern West V.pdf", "resource_type": "file.upload", "mimetype": null, "mimetype_inner": null, "size": 2464961, "created": "2014-07-03T10:08:14.671838", "last_modified": "2014-07-03T10:08:14.671838", "cache_url": null, "cache_last_updated": null, "url_type": "upload", "state": "active", "license_type": "cc-by", "folder_id": "root", "owner_org": null, "recycle_removed": false, "fgdc_metadata": false, "rating": null, "categories_json": "[]", "scale": "", "typeofgep": "Not Applicable", "locations_json": "[]", "refSystem": "", "file": "", "owner": "admin", "revision_timestamp": "July 3, 2014, 14:08:14 (EST)", "intended_use_auth": false}], "tags": [{"display_name": "DEVONIAN SHALES", "id": "a317a362-4395-4123-9ef9-3a7f68ea11fd", "name": "DEVONIAN SHALES", "state": "active", "vocabulary_id": null}, {"display_name": "Geochemistry", "id": "685da570-5449-4de6-9346-04351da14c66", "name": "Geochemistry", "state": "active", "vocabulary_id": null}, {"display_name": "INORGANIC GEOCHEMISTRY", "id": "0271198d-580d-40f9-8774-e880c101a479", "name": "INORGANIC GEOCHEMISTRY", "state": "active", "vocabulary_id": null}, {"display_name": "STRATIGRAPHIC TRENDS", "id": "b518f924-24b2-4f5a-8c51-7d04da1bacaa", "name": "STRATIGRAPHIC TRENDS", "state": "active", "vocabulary_id": null}, {"display_name": "Solids", "id": "6e05e6a8-2f2f-4faa-bdb9-84fc2037cdc3", "name": "Solids", "state": "active", "vocabulary_id": null}], "submission_authors": []}