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Articles 1 - 20 of 20
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U–Pb-Dated Flowstones Restrict South African Early Hominin Record To Dry Climate Phases, Robyn Pickering, Andy I.R. Herries, Jon D. Woodhead
U–Pb-Dated Flowstones Restrict South African Early Hominin Record To Dry Climate Phases, Robyn Pickering, Andy I.R. Herries, Jon D. Woodhead
KIP Articles
The Cradle of Humankind (Cradle) in South Africa preserves a rich collection of fossil hominins representing Australopithecus, Paranthropus and Homo1. The ages of these fossils are contentious2,3,4 and have compromised the degree to which the South African hominin record can be used to test hypotheses of human evolution. However, uranium–lead (U–Pb) analyses of horizontally bedded layers of calcium carbonate (flowstone) provide a potential opportunity to obtain a robust chronology5. Flowstones are ubiquitous cave features and provide a palaeoclimatic context, because they grow only during phases of increased effective precipitation6,7, ideally in closed caves. Here we show that flowstones from eight …
Estimating Epikarst Water Storage By Time-Lapse Surface-To-Depth Gravity Measurements, Cédric Champollion, Sabrina Deville, Jean Chéry, Erik Doerflinger, Nicolas Le Moigne, Roger Bayer, Philippe Vernant, Naomi Mazzilli
Estimating Epikarst Water Storage By Time-Lapse Surface-To-Depth Gravity Measurements, Cédric Champollion, Sabrina Deville, Jean Chéry, Erik Doerflinger, Nicolas Le Moigne, Roger Bayer, Philippe Vernant, Naomi Mazzilli
KIP Articles
The magnitude of epikarstic water storage variation is evaluated in various karst settings using a relative spring gravimeter. Gravity measurements are performed over a 1.5-year period at the surface and inside caves at different depths on three karst hydro-systems in southern France: two limestone karst systems and one dolomite karst system. We find that significant water storage variations occur in the first 10 m of karst unsaturated zone. The subsurface water storage is also evidenced by complementary magnetic resonance sounding. The comparison between sites of the depth gravity measurements with respect to net water inflow suggests that seasonal water storage …
Groundwater Management Of A Highly Dynamic Karst By Assessing Baseflow And Quickflow With A Rainfall-Discharge Model (Dardennes Springs, Se France, Cécile Baudement, Bruno Arfib, Naomi Mazzilli, Johan Jouves, Thierry Lamarque, Yves Guglielmi
Groundwater Management Of A Highly Dynamic Karst By Assessing Baseflow And Quickflow With A Rainfall-Discharge Model (Dardennes Springs, Se France, Cécile Baudement, Bruno Arfib, Naomi Mazzilli, Johan Jouves, Thierry Lamarque, Yves Guglielmi
KIP Articles
This paper aims at characterizing the groundwater flow in a highly dynamic karst aquifer using a global modeling approach based on rainfall and spring discharge time series. The Dardennes aquifer (SE France) was studied as it is used for drinking water supply and it also produces karst flash floods that increase the flood hazard downstream in urban areas. Three years of data were available, including a normal rainy year, a wet year and a dry year. Modeling was performed with the new platform KarstMod, a rainfall-discharge model with calibration tools. The Dardennes aquifer model was structured with three interconnected reservoirs: …
Groundwater Management Of A Highly Dynamic Karst By Assessing Baseflow And Quickflow With A Rainfall-Discharge Model (Dardennes Springs, Se France), Cécile Baudement, Bruno Arfib, Naomi Mazzilli, Johan Jouves, Thierry Lamarque, Yves Guglielmi
Groundwater Management Of A Highly Dynamic Karst By Assessing Baseflow And Quickflow With A Rainfall-Discharge Model (Dardennes Springs, Se France), Cécile Baudement, Bruno Arfib, Naomi Mazzilli, Johan Jouves, Thierry Lamarque, Yves Guglielmi
KIP Articles
This paper aims at characterizing the groundwater flow in a highly dynamic karst aquifer using a global modeling approach based on rainfall and spring discharge time series. The Dardennes aquifer (SE France) was studied as it is used for drinking water supply and it also produces karst flash floods that increase the flood hazard downstream in urban areas. Three years of data were available, including a normal rainy year, a wet year and a dry year. Modeling was performed with the new platform KarstMod, a rainfall-discharge model with calibration tools. The Dardennes aquifer model was structured with three interconnected reservoirs: …
The Role Of Porous Matrix In Water Flow Regulation Within A Karst Unsaturated Zone: An Integrated Hydrogeophysical Approach, Simon D. Carrière, Konstantinos Chalikakis, Charles Danquigny
The Role Of Porous Matrix In Water Flow Regulation Within A Karst Unsaturated Zone: An Integrated Hydrogeophysical Approach, Simon D. Carrière, Konstantinos Chalikakis, Charles Danquigny
KIP Articles
Some portions of the porous rock matrix in the karst unsaturated zone (UZ) can contain large volumes of water and play a major role in water flow regulation. The essential results are presented of a local-scale study conducted in 2011 and 2012 above the Low Noise Underground Laboratory (LSBB – Laboratoire Souterrain à Bas Bruit) at Rustrel, southeastern France. Previous research revealed the geological structure and water-related features of the study site and illustrated the feasibility of specific hydrogeophysical measurements. In this study, the focus is on hydrodynamics at the seasonal and event timescales. Magnetic resonance sounding (MRS) measured a …
Analysis Of Site Formation And Assemblage Integrity Does Not Support Attribution Of The Uluzzian To Modern Humans At Grotta Del Cavallo, J. Zilhão, W. E. Banks, Francesco D’Errico
Analysis Of Site Formation And Assemblage Integrity Does Not Support Attribution Of The Uluzzian To Modern Humans At Grotta Del Cavallo, J. Zilhão, W. E. Banks, Francesco D’Errico
KIP Articles
Based on the morphology of two deciduous molars and radiocarbon ages from layers D and E of the Grotta del Cavallo (Lecce, Italy), assigned to the Uluzzian, it has been proposed that modern humans were the makers of this Early Upper Paleolithic culture and that this finding considerably weakens the case for an independent emergence of symbolism among western European Neandertals. Reappraisal of the new dating evidence, of the finds curated in the Taranto Antiquities depot, and of coeval publications detailing the site’s 1963–66 excavations shows that (a) Protoaurignacian, Aurignacian and Early Epigravettian lithics exist in the assemblages from layers …
Journal Of Cave And Karst Studies, Volume 76, No. 2, August 2014, Malcolm S. Field
Journal Of Cave And Karst Studies, Volume 76, No. 2, August 2014, Malcolm S. Field
KIP Articles
Contents: Karst Evolution of the Garraf Massif (Barcelona, Spain): Doline Formation, Chronology and Archaeopalaeontological Archives -- Biogenicity and Characterization of Moonmilk in the Grotta Nera (Majella National Park, Abruzzi, Central Italy) -- Adaptations of Indigenous Bacteria to Fuel Contamination in Karst Aquifers in South-Central Kentucky -- Aerosolized Microbes from Organic Rich Materials: Case Study of Bat Guano from Caves in Romania -- Glacial Lake Schoharie: An Investigative Study of Glaciolacustrine Lithofacies in Caves, Helderberg Plateau, Central NEw York -- Diet Analysis of Leopoldamys Nelli, A Cave-Dwelling Rodent in Southeast Asia, Using Next-Generation Sequencing from Feces -- Microclimate Effects on …
Paleohydrology And The Origin Of Jewel Cave, National Cave And Karst Research Institute
Paleohydrology And The Origin Of Jewel Cave, National Cave And Karst Research Institute
KIP Articles
No abstract provided.
Preliminary Geochemical Assessment Of Limestone Resources And Stone Use At Maya Sites In The Three Rivers Region, Belize
KIP Articles
No abstract provided.
Geologic Setting Of Mosul Dam And Its Engineering Implications, Julie R. Kelley, Lillian D. Wakeley, Seth W. Broadfoot
Geologic Setting Of Mosul Dam And Its Engineering Implications, Julie R. Kelley, Lillian D. Wakeley, Seth W. Broadfoot
KIP Articles
The geologic setting of Mosul Dam is critically important for its engineering implications and its usefulness and contribution to engineer- ing and operational decisions about the dam. The dam was constructed on alternating and highly variable units of gypsum, anhydrite, marl, and lime- stone, each of which is soluble in water under the environmental and hydrogeologic conditions of the dam. From a geologic standpoint, the foundation is very poor, and the site geology is the principal cause of con- tinuing intense concern about the safety of the structure. Mineralogic variability within rock units resulted from original depositional processes that created …
Geologic Conceptual Model Of Mosul Dam, Lillian D. Wakeley, Julie R. Kelley, Monte L. Pearson
Geologic Conceptual Model Of Mosul Dam, Lillian D. Wakeley, Julie R. Kelley, Monte L. Pearson
KIP Articles
Mosul Dam, Iraq, was built in the 1980s on a foundation of soluble geologic materials. Because of the solubility of its foundation and abutments, maintenance grouting began immediately after construction and continues to the present. The U.S. Army is concerned about the stability of the dam, and about the potential military and political impacts that would accompany dam failure. At the request of the U.S. Army Corps of Engineers’ Gulf Region Division, the U.S. Army Engineer Research and Development Center (ERDC) developed a three-dimensional (3-D) geologic conceptual model of the dam, as a tool to assist with improving dam safety …
National Cave And Karst Research Institute 2004-2005 Biennial Report Nckri Biennial Report, 2004-2005, National Cave And Karst Research Institute
National Cave And Karst Research Institute 2004-2005 Biennial Report Nckri Biennial Report, 2004-2005, National Cave And Karst Research Institute
KIP Articles
Contents: Overview by the Institute Director -- Primary Partners ; National Park Service ; City of Carlsbad ; New Mexico Tech ; NCKRI, Inc. -- Institute Building Activities -- Moving towards NCKRI, Inc. ; Preliminary meetings and activities ; NCKRI, Inc. ; Planning for the future -- Facility Partners ; New Mexico State Univ./Carlsbad Environmental Monitoring Research Center ; Carlsbad Department of Development/AMITC -- NCKRI Building Project -- Visiting Scholar Program -- Volunteers Program -- NCKRI projects ; NCKRI Lecture Series ; Karst Information Portal ; NCKRI library ; NCKRI program review -- Sponsored projects ; Mississippi State University Digital …
National Cave And Karst Research Institute 2004-2005 Annual Report, National Cave And Karst Research Institute
National Cave And Karst Research Institute 2004-2005 Annual Report, National Cave And Karst Research Institute
KIP Articles
No abstract provided.
Amcs Activities Newsletter, No. 27, May 2004, Bill Mixon
Amcs Activities Newsletter, No. 27, May 2004, Bill Mixon
KIP Articles
Contents: Authors' Addresses -- New AMCS Bulletins -- Mexico News -- Long and Deep Caves Lists -- Deep Pits List -- Proyecto Cerro Rabon 2004 -- Mexpe 2002 - Sistema Tepapa -- Caving in Sistema Cheve, Oaxaca -- Caves on the Jalpan Quadrangle, Queretaro -- Ox Bel Ha, Spring 2003 -- Maya Cave Shrines, Quintana Roo -- Speciation in Aquatic Trogloxenes in Cenotes -- Caving in Cuetzalan -- History: First Speleological Survey of Mexico Trip -- Chiropterphobia -- Gruta de San Sebastian -- Grutas de Balancanche -- Diving the Cheve Sumps -- Caves of Atoyac, Veracruz -- Geography of Caves …
Microfacies Of The Triassic Limestones In The Piatra Şoimuliu Klippe (Transylvanian Nappes, Rarau Syncline, Eastern Carpathians, Romania), Daniela Alexandra Popescu, Liviu Gheorghe Popescu
Microfacies Of The Triassic Limestones In The Piatra Şoimuliu Klippe (Transylvanian Nappes, Rarau Syncline, Eastern Carpathians, Romania), Daniela Alexandra Popescu, Liviu Gheorghe Popescu
KIP Articles
No abstract provided.
Hydrogeology Of The Sistema Huautla Karst Groundwater Basin Association For Mexican Cave Studies Bulletin, Vol. 9, 2002, James H. Smith Jr.
Hydrogeology Of The Sistema Huautla Karst Groundwater Basin Association For Mexican Cave Studies Bulletin, Vol. 9, 2002, James H. Smith Jr.
KIP Articles
Sistema Huautla, in 2002 the world’s seventh deepest cave, at 1,475 meters, is one of the most complex vertical drainage systems in the world. The focus of this research was to study the geology, karst hydrology, and speleology of the Sistema Huautla cave system. Literature review and subsequent field mapping identified the geologic formations and tectonic structures that Sistema Huautla and tributary caves are developed within. Structural geology studies within the aquifer indicate that base-level conduits in the mapped portion of the aquifer are formed along a major normal fault system called the Sistema Huautla Fault. Conduits in other sections …
The Scalloping Phenomenon And Its Significance In Flowassisted-Corrosion., Villien Benoit, Y. Zheng, D. H. Lister
The Scalloping Phenomenon And Its Significance In Flowassisted-Corrosion., Villien Benoit, Y. Zheng, D. H. Lister
KIP Articles
The recently observed Flow-Assisted Corrosion (FAC) of CANDU outlet feeders is associated with a texturing of the corroding surface, called "scalloping", that imparts the appearance of orange peel. To study the evolution of erosion and dissolution patterns contributing to scalloping and to derive the link with corrosion, experiments on the dissolution of pipes made of plaster of Paris (CaSO4.½H2O) are being carried out. Flow-Assisted Corrosion is a significant problem with carbon steel components handling rapidly moving water or water/steam mixtures in the power generating industry. The mechanism of FAC in outlet feeders of CANDU reactors can be described in terms …
Structure Map Of The San Antonio Segment Of The Edwards Aquifer And Balcones Fault Zone, South-Central Texas: Structural Framework Of A Major Limestone Aquifer: Kinney, Uvalde, Medina, Bexar, Comal, And Hays Counties, E. W. Collins, S. D. Hovorka
Structure Map Of The San Antonio Segment Of The Edwards Aquifer And Balcones Fault Zone, South-Central Texas: Structural Framework Of A Major Limestone Aquifer: Kinney, Uvalde, Medina, Bexar, Comal, And Hays Counties, E. W. Collins, S. D. Hovorka
KIP Articles
No abstract provided.
Cave Research Foundation Newsletter, Volume 21, No. 2, May 1993, Sue Hagan, Mick Sutton
Cave Research Foundation Newsletter, Volume 21, No. 2, May 1993, Sue Hagan, Mick Sutton
KIP Articles
Contents: Coming Our Way: CRF Headquarters / Mel Park -- CRF Mission Statement -- Bill to Protect Lechuguilla Cave Introduced in Congress -- New Management Plan for Carlsbad Caverns NP -- Carlsbad Underground Concessions: Environmental Assessment Completed -- Mammoth Cave National Park Oral History Project -- Ground Trail Ladder Tale / Pete Lindsley -- Addendum: The Grund Trail Revisited / Mel Park -- Expeditions -- Sides Cave -- Hamilton Valley Work Weekend Schedule -- Open Letter to all Joint Venturers -- The Underground Reader / S. Hagan -- CRF Expedition to China 1993 -- Calendar
Amcs Activities Newsletter, No. 16, August 1987, Terri Treacy Sprouse
Amcs Activities Newsletter, No. 16, August 1987, Terri Treacy Sprouse
KIP Articles
Contents: Mexico News -- Long and Deep Caves of Mexico -- Nanta-Huautla Tie-In -- Chilchotla '85 -- Caving in Tabasco -- UNAM Expedition to Veracruz -- Chiapas: The Dutch Expedition -- Belginan Explorations at Zoquitlan -- Underwater Caverns of Quintana Roo -- Sotano de Ocotempa -- Sea Caves of Loreto -- Camp Challenger: PEP 1986 -- Camp V: PEP 1987 -- Cueva de la Llorona -- Cueva del Tecolote -- Book Reviews