Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- Western Michigan University (18359)
- University of Kentucky (7455)
- University of Nebraska - Lincoln (4226)
- Bulletin of the Mineral Research and Exploration (1874)
- University of South Florida (1773)
-
- Department of Primary Industries and Regional Development, Western Australia (1500)
- Utah State University (1310)
- China Coal Technology and Engineering Group (CCTEG) (1173)
- TÜBİTAK (822)
- Missouri University of Science and Technology (644)
- Boise State University (638)
- Portland State University (595)
- The University of Maine (584)
- University of Arkansas, Fayetteville (581)
- Old Dominion University (536)
- Selected Works (491)
- Montana Tech Library (485)
- Western Kentucky University (482)
- University of Colorado Law School (481)
- University of Nevada, Las Vegas (443)
- Western Washington University (418)
- William & Mary (386)
- University of North Dakota (378)
- University of Massachusetts Amherst (374)
- Louisiana State University (370)
- Western University (344)
- University of Texas Rio Grande Valley (335)
- Central Washington University (327)
- University of Tennessee, Knoxville (315)
- University of New Mexico (307)
- Keyword
-
- Western Australia (1087)
- Geology (779)
- Grains and field crops (610)
- Groundwater (592)
- Nebraska (558)
-
- Geochemistry (486)
- Climate change (439)
- Hydrology (366)
- Soil (365)
- Montana (323)
- Kentucky (274)
- Utah (268)
- Grazing (264)
- Water quality (262)
- Nitrogen (255)
- Salinity (251)
- Remote sensing (246)
- Water (224)
- Karst (219)
- Stratigraphy (216)
- Hydrogeology (215)
- Climate (201)
- Geomorphology (197)
- Geophysics (194)
- Climate Change (190)
- Agriculture (189)
- Phosphorus (184)
- GIS (179)
- Drought (177)
- Irrigation (176)
- Publication Year
- Publication
-
- Legacy Scout Tickets from Pure Oil Company (11044)
- IGC Proceedings (1997-2023) (5871)
- Thin Sections (5745)
- Bulletin of the Mineral Research and Exploration (1874)
- Coal Geology & Exploration (1173)
-
- Legacy Color Lithology Strip Logs (1152)
- United States Geological Survey: Staff Publications (1020)
- Theses and Dissertations (855)
- International Journal of Speleology (845)
- Conservation and Survey Division (822)
- Turkish Journal of Earth Sciences (822)
- Masters Theses (799)
- Experimental Summaries - Plant Research (667)
- Department of Earth and Atmospheric Sciences: Faculty Publications (666)
- All Graduate Theses and Dissertations, Spring 1920 to Summer 2023 (453)
- Bachelors Theses and Reports, 1928 - 1970 (417)
- Electronic Theses and Dissertations (401)
- Kentucky Alfalfa and Stored Forage Conference (382)
- Faculty Publications (352)
- Geosciences Faculty Publications and Presentations (347)
- School of Geosciences Faculty and Staff Publications (331)
- Memorandum (316)
- Resource management technical reports (312)
- Dissertations and Theses (309)
- Graduate Theses and Dissertations (295)
- Electronic Thesis and Dissertation Repository (290)
- WWU Graduate School Collection (287)
- Earth Science Faculty Scholarship (276)
- Earth and Planetary Sciences ETDs (275)
- Doctoral Dissertations (271)
Articles 1 - 30 of 55844
Full-Text Articles in Physical Sciences and Mathematics
Inferred Areal Extent Of The Oligocene (White River Group) Chadron Basal Sand, Conservation And Survey Division
Inferred Areal Extent Of The Oligocene (White River Group) Chadron Basal Sand, Conservation And Survey Division
Conservation and Survey Division
No abstract provided.
Pre-Tertiary Subcrop Rocks In The Nebraska Panhandle, Conservation Annd Survey Division
Pre-Tertiary Subcrop Rocks In The Nebraska Panhandle, Conservation Annd Survey Division
Conservation and Survey Division
No abstract provided.
Configuration Of The Base Of The Principal Aquifer, Conservation And Survey Division
Configuration Of The Base Of The Principal Aquifer, Conservation And Survey Division
Conservation and Survey Division
No abstract provided.
Mgrre_Thinsections_Mgrre_11_26, Mgrre
Mgrre_Thinsections_Mgrre_11_25, Mgrre
Mgrre_Thinsections_Mgrre_11_24, Mgrre
Mgrre_Thinsections_Mgrre_11_23, Mgrre
Mgrre_Thinsections_Mgrre_11_22, Mgrre
Mgrre_Thinsections_Mgrre_11_21, Mgrre
Mgrre_Thinsections_Mgrre_11_20, Mgrre
Mgrre_Thinsections_Mgrre_11_19, Mgrre
Mgrre_Thinsections_Mgrre_11_18, Mgrre
Mgrre_Thinsections_Mgrre_11_17, Mgrre
Mgrre_Thinsections_Mgrre_11_16, Mgrre
Mgrre_Thinsections_Mgrre_11_15, Mgrre
Mgrre_Thinsections_Mgrre_11_14, Mgrre
Mgrre_Thinsections_Mgrre_11_13, Mgrre
Mgrre_Thinsections_Mgrre_11_12, Mgrre
Mgrre_Thinsections_Mgrre_11_11, Mgrre
Mgrre_Thinsections_Mgrre_11_10, Mgrre
Mgrre_Thinsections_Mgrre_11_9, Mgrre
Mgrre_Thinsections_Mgrre_11_8, Mgrre
Mgrre_Thinsections_Mgrre_11_7, Mgrre
Mgrre_Thinsections_Mgrre_11_6, Mgrre
Mgrre_Thinsections_Mgrre_11_5, Mgrre
Mgrre_Thinsections_Mgrre_11_4, Mgrre
Mgrre_Thinsections_Mgrre_11_3, Mgrre
Mgrre_Thinsections_Mgrre_11_2, Mgrre
Mgrre_Thinsections_Mgrre_11_1, Mgrre
Dating The Ste. Genevieve Limestone In West-Central Indiana Using Sr-Isotope Stratigraphy, Claire Wolfe '24
Dating The Ste. Genevieve Limestone In West-Central Indiana Using Sr-Isotope Stratigraphy, Claire Wolfe '24
Senior Research Symposium
A section of Mississippian limestone is exposed in quarry walls at the DePauw Nature Park in Greencastle, Indiana, but its precise age is not known. This research project aimed to date the exposed wall using 87Sr/86Sr isotopic ratios to determine the absolute age. Ten samples of brachiopods and ooids were collected at various levels along the stratigraphic column. Isotope ratios were measured in these samples at ALS Scandinavia using a Neptune Plus MC-ICP-MS. Those ratios were then placed on a LOESS seawater Sr-isotope curve (McArthur, 2020) to determine the absolute age range for each sample. Whereas several samples were contaminated …