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Articles 1 - 30 of 29999

Full-Text Articles in Geology

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

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No abstract provided.


Mgrre_Thinsections_Mgrre_11_24, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_24, Mgrre

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No abstract provided.


Mgrre_Thinsections_Mgrre_11_23, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_23, Mgrre

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No abstract provided.


Mgrre_Thinsections_Mgrre_11_22, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_22, Mgrre

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No abstract provided.


Mgrre_Thinsections_Mgrre_11_21, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_21, Mgrre

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No abstract provided.


Mgrre_Thinsections_Mgrre_11_20, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_20, Mgrre

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No abstract provided.


Mgrre_Thinsections_Mgrre_11_19, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_19, Mgrre

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No abstract provided.


Mgrre_Thinsections_Mgrre_11_18, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_18, Mgrre

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No abstract provided.


Mgrre_Thinsections_Mgrre_11_17, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_17, Mgrre

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No abstract provided.


Mgrre_Thinsections_Mgrre_11_16, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_16, Mgrre

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No abstract provided.


Mgrre_Thinsections_Mgrre_11_15, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_15, Mgrre

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No abstract provided.


System-Scale Patterns Of Karst Ventilation In A Mediterranean Karst Massif And Their Implications For The Subsurface Thermal Regime, José Luis Yanes, Francisco Moral Nov 2026

System-Scale Patterns Of Karst Ventilation In A Mediterranean Karst Massif And Their Implications For The Subsurface Thermal Regime, José Luis Yanes, Francisco Moral

International Journal of Speleology

Karst systems are heterogeneous environments in which water flow is commonly assumed to control subsurface thermal dynamics. However, the role of air circulation at the system scale remains poorly constrained. This study presents a characterization of the thermal expression of ventilation processes in a western Betic Range (southern Spain) karst massif, based on the continuous monitoring of air temperature in multiple conduits distributed along an altitudinal gradient, combined with the analysis of external atmospheric conditions. Results show that ventilation is strongly seasonal and controlled by the interaction between thermal gradients, transient atmospheric variations and system geometry. The observations reveal recurrent …


Mgrre_Thinsections_Mgrre_11_14, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_14, Mgrre

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No abstract provided.


Mgrre_Thinsections_Mgrre_11_13, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_13, Mgrre

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No abstract provided.


Calcite Spar Of Kryštálová Cave (Slovakia): Insights Into Formation Conditions From Fluid Inclusions, Stable Isotopes, And Noble Gases, Petronela Ševčíková, Yuri Dublyansky, Stanislava Milovská, László Palcsu, Marjan Temovski, Kata Molnár, Gabriella I. Kiss, Mário Olšavský, Pavel Herich, Gabriella Koltai, Christoph Spötl Nov 2026

Calcite Spar Of Kryštálová Cave (Slovakia): Insights Into Formation Conditions From Fluid Inclusions, Stable Isotopes, And Noble Gases, Petronela Ševčíková, Yuri Dublyansky, Stanislava Milovská, László Palcsu, Marjan Temovski, Kata Molnár, Gabriella I. Kiss, Mário Olšavský, Pavel Herich, Gabriella Koltai, Christoph Spötl

International Journal of Speleology

Phreatic calcite spar is an infrequently used yet promising archive for paleohydrology, a diagnostic tool for speleogenesis, and a robust geothermometer. In this study, we investigated phreatic calcite from Kryštálová cave (Malá Fatra Mts., Slovakia) to constrain its formation conditions, reconstruct the composition of its parent fluid, determine precipitation temperatures, and assess its potential for paleohydrology. Fluid-inclusion microthermometry and stable isotope analyses of inclusion water indicate that calcite precipitated at 45-80°C from a meteoric fluid (δ2Hmeas = -87.4 to -84.4‰; δ18Ocalc = -12.2 to -11.8‰) with a purely crustal noble gas signature. Stable …


Mgrre_Thinsections_Mgrre_11_12, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_12, Mgrre

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No abstract provided.


Mgrre_Thinsections_Mgrre_11_11, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_11, Mgrre

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No abstract provided.


Validation Of A Portable High-Flow Methane Measurement Protocol For Orphaned Wells [Supplemental Information], Alex M. Washburn, Deron W. Zierer, Zachary O. Walton, Andrew Hawksley, Monte Rivers, Madison High Nov 2026

Validation Of A Portable High-Flow Methane Measurement Protocol For Orphaned Wells [Supplemental Information], Alex M. Washburn, Deron W. Zierer, Zachary O. Walton, Andrew Hawksley, Monte Rivers, Madison High

KGS Research Data Set

This dataset documents controlled methane-release experiments evaluating the effects of tarping and simulated wellhead configuration on high-flow methane measurements. Experiments were conducted outdoors at the Kentucky Geological Survey Earth Analysis Research Laboratory in Lexington, Kentucky. The dataset includes 90 experimental test blocks and 62 controlled-release standard blocks across four configurations: far apart, fluted, open borehole, and twin leaks. Tests used methane mass-flow targets of 79.9, 39.9, and 0.86 g/hr under tarped and untarped conditions. Four compilation workbooks contain retained instrument time series, trim indicators, weather observations, and charts. A master workbook contains block summaries, standard-based corrections, descriptive statistics, and comparisons. …


Mgrre_Thinsections_Mgrre_11_10, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_10, Mgrre

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No abstract provided.


Mgrre_Thinsections_Mgrre_11_9, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_9, Mgrre

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No abstract provided.


Mgrre_Thinsections_Mgrre_11_8, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_8, Mgrre

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No abstract provided.


Mgrre_Thinsections_Mgrre_11_7, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_7, Mgrre

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No abstract provided.


Mgrre_Thinsections_Mgrre_11_6, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_6, Mgrre

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No abstract provided.


Mgrre_Thinsections_Mgrre_11_5, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_5, Mgrre

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No abstract provided.


Mgrre_Thinsections_Mgrre_11_4, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_4, Mgrre

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No abstract provided.


Mgrre_Thinsections_Mgrre_11_3, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_3, Mgrre

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No abstract provided.


Mgrre_Thinsections_Mgrre_11_2, Mgrre Nov 2026

Mgrre_Thinsections_Mgrre_11_2, Mgrre

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No abstract provided.


Mgrre_Thinsections_Mgrre_11_1, Mgrre Oct 2026

Mgrre_Thinsections_Mgrre_11_1, Mgrre

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No abstract provided.


A Sneak Peek Into Prehistory: Curating An Interactive Fossil Display To Spark Interest In The Ua Little Rock Natural History Museum, Syd Joheim, Rene Shroat-Lewis Oct 2026

A Sneak Peek Into Prehistory: Curating An Interactive Fossil Display To Spark Interest In The Ua Little Rock Natural History Museum, Syd Joheim, Rene Shroat-Lewis

Research and Creative Works Expo

Arkansas does not currently have a dedicated natural history museum, creating a unique opportunity for UA Little Rock following the recent donation of an expansive fossil collection. In response, the university established a natural history museum initiative intended to benefit both the campus community and the broader public across Arkansas. This initiative provides accessible resources for learning about natural science, evolution, and the state’s prehistoric past, areas that are often underrepresented in informal science education. It also serves as a platform for outreach, student engagement, and undergraduate research, strengthening UA Little Rock’s role in science education, workforce development, and community …