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Articles 1 - 26 of 26
Full-Text Articles in Earth Sciences
Late Quaternary Fossil Mammals And Last Occurrence Dates From Caves At Barahona, Puerto Rico, Donald A. Mcfarlane
Late Quaternary Fossil Mammals And Last Occurrence Dates From Caves At Barahona, Puerto Rico, Donald A. Mcfarlane
WM Keck Science Faculty Papers
Puerto Rico supported at least five genera of endemic terrestrial mammals in the late Quaternary, all of which are extinct. Whether these animals died out in the late Pleistocene, the mid-Holocene, or in post-Columbian time has not been established. This paper is the first attempt at radiometrically dating the 'last occurrences' of these taxa, together with the first unambiguous descriptions of localities reported by previous workers. Last occurrence dates for Nesophontes, Elasmodontomys and Heteropsomys are shown to be mid-Holocene and overlap with Amerindian occupation of the island. Acratocnus is known only from the late Pleistocene. No Puerto Rican taxon has …
Ostracod And Foraminifer Assemblages Of Tertiary Sediments At W. Bakirköy (Istanbul), Ümit Şafak, Niyazi Avşar, Engin Meri̇ç
Ostracod And Foraminifer Assemblages Of Tertiary Sediments At W. Bakirköy (Istanbul), Ümit Şafak, Niyazi Avşar, Engin Meri̇ç
Bulletin of the Mineral Research and Exploration
No abstract provided.
Paleontological (Planktic Foraminifer-Ostracod) Investigation Of Eocene Sequence Of Karamanregion, Ümit Şafak
Paleontological (Planktic Foraminifer-Ostracod) Investigation Of Eocene Sequence Of Karamanregion, Ümit Şafak
Bulletin of the Mineral Research and Exploration
No abstract provided.
Late Miocene Artiodactylles (Mammalia) From Yukarisazak Village (Kale-Deni̇zli̇), Vahdet Tuna
Late Miocene Artiodactylles (Mammalia) From Yukarisazak Village (Kale-Deni̇zli̇), Vahdet Tuna
Bulletin of the Mineral Research and Exploration
No abstract provided.
A Bramatherium Skull (Giraffidae, Mammalia) From The Late Miocene Of Kavakdere (Central Turkey). Biogeographic And Phylogenetic Implications, Deniş Geraads, Erksin Güleç
A Bramatherium Skull (Giraffidae, Mammalia) From The Late Miocene Of Kavakdere (Central Turkey). Biogeographic And Phylogenetic Implications, Deniş Geraads, Erksin Güleç
Bulletin of the Mineral Research and Exploration
A sub-adult skull from the Late Miocene of Kavakdere, desciribed and referred to the Indian genus Bramatherium. increases the similarity between the Indian sub-continent and the Greco-Iranian province. The contents and subdivisions of the subfamily Sivatheriinae are reviewed, with 2 main groups being recognized, based upon the homologies and position of horns. They are perhaps both of western European origin.
Test-Hole Drilling Program In Nebraska, Duane R. Mohlman
Test-Hole Drilling Program In Nebraska, Duane R. Mohlman
Conservation and Survey Division
No abstract provided.
Classification Of Torbanite And Cannel Coal. I. Insights From Petrographic Analysis Of Density Fractions., Zhiwen Han, Michael A. Kruge, John C. Crelling, David F. Bensley
Classification Of Torbanite And Cannel Coal. I. Insights From Petrographic Analysis Of Density Fractions., Zhiwen Han, Michael A. Kruge, John C. Crelling, David F. Bensley
Department of Earth and Environmental Studies Faculty Scholarship and Creative Works
Torbanite and cannel coal are considered to be coals because of their low mineral content and overall physical morphology. However, the texture and composition of the organic matter in torbanite and cannel coal are similar to the kerogen occurring in oil shales and lacustrine source rocks. Therefore, understanding the nature and origin of organic components in torbanite and cannel coal is of significance in the study of kerogen and petroleum formation. In this research, a set of torbanites and cannel coals from different locations throughout the world were petrographically characterized and processed using a density gradient centrifugation (DGC) technique. Microscopically, …
Dawson County Test Hole Logs, Frank A. Smith
Dawson County Test Hole Logs, Frank A. Smith
Conservation and Survey Division
No abstract provided.
Howard County Test Hole Logs, Vincent H. Dreeszen
Howard County Test Hole Logs, Vincent H. Dreeszen
Conservation and Survey Division
No abstract provided.
Kearney County Test Hole Logs, Scott E. Summerside
Kearney County Test Hole Logs, Scott E. Summerside
Conservation and Survey Division
No abstract provided.
Wayne County Test Hole Logs, Sue Olafsen Lackey, Frank A. Smith, Raymond R. Burchett
Wayne County Test Hole Logs, Sue Olafsen Lackey, Frank A. Smith, Raymond R. Burchett
Conservation and Survey Division
No abstract provided.
Stanton County Test Hole Logs, Sue Olafsen Lackey, Frank A. Smith, Raymond R. Burchett
Stanton County Test Hole Logs, Sue Olafsen Lackey, Frank A. Smith, Raymond R. Burchett
Conservation and Survey Division
No abstract provided.
Acres Irrigated In Nebraska - Past, Present, And Future, Bryce B. Pease
Acres Irrigated In Nebraska - Past, Present, And Future, Bryce B. Pease
Conservation and Survey Division
No abstract provided.
A Biogeochemical Comparison Of Fossil (Carboniferous) And Modern Crustose Red Algae, Michael A. Kruge, John E. Utgaard, William Ferry
A Biogeochemical Comparison Of Fossil (Carboniferous) And Modern Crustose Red Algae, Michael A. Kruge, John E. Utgaard, William Ferry
Department of Earth and Environmental Studies Faculty Scholarship and Creative Works
The nature of the contribution of the various types of algae to sedimentary organic matter continues to be a topic of research interest. Crustose red algae have however received less attention than other types. The fossil calcareous red algae (Rhodophyta) analyzed in this study are two relatively unrecrystallized specimens of Parachaetetes (Family Solenoporacea) from the lower part of the Ste. Genevieve Formation (Carboniferous, Visean) in Union County, Illinois, USA. They occurred in the patch reef phase of a small carbonate mudmound-patchreef. The three modern specimens (collected and identified by F. Collier) are the crustose algae Lithothamnion, Clathromorphum and Phymatolithon …
Groundwater-Level Changes In Nebraska, 1996, Abraham H. Chen, Mohan J. Khisty
Groundwater-Level Changes In Nebraska, 1996, Abraham H. Chen, Mohan J. Khisty
Conservation and Survey Division
No abstract provided.
Douglas County Test Hole Logs, Raymond R. Burchett, Frank A. Smith
Douglas County Test Hole Logs, Raymond R. Burchett, Frank A. Smith
Conservation and Survey Division
No abstract provided.
Hamilton County Test Hole Logs, Perry B. Wigley
Hamilton County Test Hole Logs, Perry B. Wigley
Conservation and Survey Division
No abstract provided.
Merrick County Test Hole Logs, Frank A. Smith
Merrick County Test Hole Logs, Frank A. Smith
Conservation and Survey Division
No abstract provided.
Hall County Test Hole Logs, Vincent H. Dreeszen
Hall County Test Hole Logs, Vincent H. Dreeszen
Conservation and Survey Division
No abstract provided.
Sarpy County Test Hole Logs, Raymond R. Burchett, Frank A. Smith
Sarpy County Test Hole Logs, Raymond R. Burchett, Frank A. Smith
Conservation and Survey Division
No abstract provided.
Phelps County Test Hole Logs, S. E. Summerside
Phelps County Test Hole Logs, S. E. Summerside
Conservation and Survey Division
No abstract provided.
Resource Notes-Academic Year 1998-99
Resource Notes-Academic Year 1998-99
Conservation and Survey Division
No abstract provided.
2018 Nebraska Water Leaders Academy - Final Report, Mark E. Burbach
2018 Nebraska Water Leaders Academy - Final Report, Mark E. Burbach
Conservation and Survey Division
Nineteen participants completed the 2018 Water Leaders Academy bringing the total number of graduates to 120 since the inception of the program in 2011. Assessment of participants’ transformational leadership skills, champion of innovation skills, water knowledge and engagement, civic capacity, and entrepreneurial leadership behaviors showed a significant increase over the course of the year, from both participants’ and their raters’ perspectives. Feedback from participants was highly positive and constructive. Participant concerns were addressed, and only minor changes are planned for the 2019 Academy curriculum. Results of the program assessment indicate that the curriculum is meeting Academy objectives. Most importantly, Alumni …
Groundwater-Level Changes In Nebraska 1996, Abraham H. Chen, Mohan J. Khisty
Groundwater-Level Changes In Nebraska 1996, Abraham H. Chen, Mohan J. Khisty
Conservation and Survey Division
No abstract provided.
Groundwater-Level Changes In Nebraska, Predevelopment To Spring 1997/Registered Irrigation Wells In Nebraska-Spring 1997, Conservation Survey Division, Jennifer Stanton, Ann Mack, Jim Weir
Groundwater-Level Changes In Nebraska, Predevelopment To Spring 1997/Registered Irrigation Wells In Nebraska-Spring 1997, Conservation Survey Division, Jennifer Stanton, Ann Mack, Jim Weir
Conservation and Survey Division
No abstract provided.