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Articles 1 - 30 of 28224

Full-Text Articles in Physical Sciences and Mathematics

Mgrre_Thinsections_Mgrre_11_26, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_26, Mgrre

Thin Sections

No abstract provided.


Mgrre_Thinsections_Mgrre_11_25, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_25, Mgrre

Thin Sections

No abstract provided.


Mgrre_Thinsections_Mgrre_11_24, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_24, Mgrre

Thin Sections

No abstract provided.


Mgrre_Thinsections_Mgrre_11_23, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_23, Mgrre

Thin Sections

No abstract provided.


Mgrre_Thinsections_Mgrre_11_22, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_22, Mgrre

Thin Sections

No abstract provided.


Mgrre_Thinsections_Mgrre_11_21, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_21, Mgrre

Thin Sections

No abstract provided.


Mgrre_Thinsections_Mgrre_11_20, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_20, Mgrre

Thin Sections

No abstract provided.


Mgrre_Thinsections_Mgrre_11_19, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_19, Mgrre

Thin Sections

No abstract provided.


Mgrre_Thinsections_Mgrre_11_18, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_18, Mgrre

Thin Sections

No abstract provided.


Mgrre_Thinsections_Mgrre_11_17, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_17, Mgrre

Thin Sections

No abstract provided.


Mgrre_Thinsections_Mgrre_11_16, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_16, Mgrre

Thin Sections

No abstract provided.


Mgrre_Thinsections_Mgrre_11_15, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_15, Mgrre

Thin Sections

No abstract provided.


Mgrre_Thinsections_Mgrre_11_14, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_14, Mgrre

Thin Sections

No abstract provided.


Mgrre_Thinsections_Mgrre_11_13, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_13, Mgrre

Thin Sections

No abstract provided.


Mgrre_Thinsections_Mgrre_11_12, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_12, Mgrre

Thin Sections

No abstract provided.


Mgrre_Thinsections_Mgrre_11_11, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_11, Mgrre

Thin Sections

No abstract provided.


Mgrre_Thinsections_Mgrre_11_10, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_10, Mgrre

Thin Sections

No abstract provided.


Mgrre_Thinsections_Mgrre_11_9, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_9, Mgrre

Thin Sections

No abstract provided.


Mgrre_Thinsections_Mgrre_11_8, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_8, Mgrre

Thin Sections

No abstract provided.


Mgrre_Thinsections_Mgrre_11_7, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_7, Mgrre

Thin Sections

No abstract provided.


Mgrre_Thinsections_Mgrre_11_6, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_6, Mgrre

Thin Sections

No abstract provided.


Mgrre_Thinsections_Mgrre_11_5, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_5, Mgrre

Thin Sections

No abstract provided.


Mgrre_Thinsections_Mgrre_11_4, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_4, Mgrre

Thin Sections

No abstract provided.


Mgrre_Thinsections_Mgrre_11_3, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_3, Mgrre

Thin Sections

No abstract provided.


Mgrre_Thinsections_Mgrre_11_2, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_2, Mgrre

Thin Sections

No abstract provided.


Mgrre_Thinsections_Mgrre_11_1, Mgrre Oct 2026

Mgrre_Thinsections_Mgrre_11_1, Mgrre

Thin Sections

No abstract provided.


Hypogene Speleogenesis In The Grand Canyon; Observational, Mineralogical, And Geochemical Investigations From The Bopper Cave System, Sierra Heimel Jan 2023

Hypogene Speleogenesis In The Grand Canyon; Observational, Mineralogical, And Geochemical Investigations From The Bopper Cave System, Sierra Heimel

Theses and Dissertations--Earth and Environmental Sciences

One of the most prominent features of the Grand Canyon is the iron-stained Redwall Limestone, which has been documented to contain extensive cave systems with significant storage potential in the karstic Redwall-Muav (R-M) aquifer. The hydrogeologic relationships between the R-M aquifer and cave formation in the Grand Canyon via descending (epigenic) surface waters have been well documented. However; the potentially large role of deeply sourced (hypogenic) waters rising from depth in relation to cave formation is poorly understood. The Bopper Cave System (BCS) is a relict feature of the ancient abandoned hydrologic system at Grand Canyon and displays unique network …


Magnetic Anomaly Data Products Of The Central And Eastern United States, Dhananjay Ravat Jan 2023

Magnetic Anomaly Data Products Of The Central And Eastern United States, Dhananjay Ravat

Earth and Environmental Sciences Research Data

This data set contains Central and Eastern U.S. Magnetic Anomaly, DRTP, Tilt Derivative, and Analytic Signal Amplitude Products ultimately derived from Ravat, D., Finn, C., Hill, P., Kucks, R., Phillips, J., Blakely, R., Bouligand, C., Sabaka, T., Elshayat, A., Aref, A., and Elawadi, E., 2009, A preliminary, full spectrum, magnetic anomaly grid of the United States with improved long wavelengths for studying continental dynamics--A website for distribution of data: U.S. Geological Survey Open- File Report 2009–1258, 2 p.


Isotopic Signature Of Massive, Buried Ice In Eastern Taylor Valley, Antarctica: Implications For Its Origin, Christopher B. Gardner, Melisa A. Diaz, Devin F. Smith, Andrew G. Fountain, Joseph S. Levy, W. Berry Lyons Dec 2022

Isotopic Signature Of Massive, Buried Ice In Eastern Taylor Valley, Antarctica: Implications For Its Origin, Christopher B. Gardner, Melisa A. Diaz, Devin F. Smith, Andrew G. Fountain, Joseph S. Levy, W. Berry Lyons

Geography Faculty Publications and Presentations

The coastal regions of the McMurdo Dry Valleys, Antarctica, contain deposits of the Ross Sea Drift, sedimentary material left from the Ross Sea ice sheet from the advance of the West Antarctic ice sheet during the Last Glacial Maximum. Much of this deposit is ice-cored, but data on the stable isotopic composition of water from this ice, which may contain a valuable climate archive, are sparse or incomplete. Widespread thermokarstic ground subsidence in this “coastal thaw zone” of the McMurdo Dry Valleys suggests that these potential records are rapidly being lost due to the melting of ground ice and permafrost. …


Surficial Geologic Map Of The Millerstown 7.5-Minute Quadrangle, Kentucky, Matthew A. Massey, Max Hammond Iii, Antonia E. Bottoms, Ann Hislop, Michelle Mchugh, Emily Morris Dec 2022

Surficial Geologic Map Of The Millerstown 7.5-Minute Quadrangle, Kentucky, Matthew A. Massey, Max Hammond Iii, Antonia E. Bottoms, Ann Hislop, Michelle Mchugh, Emily Morris

Kentucky Geological Survey Report of Investigations

The Millerstown 7.5-minute quadrangle is located south of Louisville and southwest of Elizabethtown along the boundaries between Hardin, Grayson, and Hart Counties and within the Mississippian Plateau physiographic region (McDowell, 1986). Topography is characterized by the low relief Pennyroyal plain that sits at altitudes below about 650 ft above sea level, the low relief Mammoth Cave plateau at altitudes above about 650 ft, and steep slopes of and isolated knobs of the incised Dripping Springs escarpment that separates the two plains. Moore (1965) mapped the bedrock geology of the quadrangle, which was later digitized by Johnson (2006). Mississippian bedrock and …