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The AAPG/Datapages Combined Publications Database
Showing 568 Results. Searched 200,674 documents.
Chapter 11: Breaking Barriers and Paradigms in Presalt Exploration: The Pão de Açúcar Discovery (Offshore Brazil)
Pedro Henrique Vieira de Luca, Hugo Matias, José Carballo, Diana Sineva, Gustavo Antunes Pimentel, Jordi Tritlla, Mateu Esteban, Rubén Loma, José Luis Algibez Alonso, Ricardo Perona Jiménez, Matthieu Pontet, Pedro Bonillo Martinez, Victor Vega
AAPG Special Volumes
..., no. 4, p. 596–623. Kelley, D. S., G. L. Fruh-Green, J. A. Karson, and K. A. Ludwig, 2007, The Lost City hydrothermal field revisited: Oceanography, v...
2017
Integrated Uranium Systems in the Marysvale Volcanic Field, West-Central Utah
T. A. Steven, C. G. Cunningham, M. N. Machette
AAPG Special Volumes
... (K. R. Ludwig, personal commun., 1980). At the levels exposed, the primary veins consist largely of the gangue minerals fluorite, quartz, and minor...
1981
Transportation of Detritus by Moving Water: Part 1. Transportation
Filip Hjulstrom
AAPG Special Volumes
... Water, I-II," Univ. Iowa Studies in Eng. Bulls. 5 and 11. 1935 and 1937. 30. MUHLHOFER, LUDWIG, "Untersuchungen uber die Schwebstoff und Geschiebefuhrung...
1939
Relationship of Uranium to Petrography of Caliche Paleosols with Application to Precisely Dating the Time of Sedimentation
E. Troy Rasbury , William J. Meyers , Gilbert N. Hanson , Robert H. Goldstein , Arthur H. Saller
Journal of Sedimentary Research (SEPM)
..., AND WOODWARD, J.C., 1993, Enzymatic iron and uranium reduction by sulfate-reducing bacteria: Marine Geology, v. 113, p. 41-53. LUDWIG K.R., 1994...
2000
Chalk Dolomitization Beneath Localized Subsiding Tertiary Depressions in a Marginal Marine Setting in the Paris Basin (France)
Medard Thiry, Franck Hanot,, Catherine Pierre
Journal of Sedimentary Research (SEPM)
..., L.A., PROBST, J.L., AND LUDWIG, W., 1994, Latitudinal distribution of paleotemperature on land and sea from early Cretaceous to middle Miocene...
2003
Holocene Reef Development Where Wave Energy Reduces Accommodaton Space, Kailua Bay, Windward Oahu, Hawaii, U.S.A.
Eric E. Grossman, Charles H. Fletcher, III
Journal of Sedimentary Research (SEPM)
...., AND SPURK, M., 1998, INTCAL98 Radiocarbon age calibration 24,000-0 cal BP: Radiocarbon, v. 40, p. 1041-1083. SZABO, B.J., LUDWIG, K.R., MUHS, D.R....
2004
Using Detrital Zircon Geochronology to Solve Complex Structural Problems: An Application with Pitfalls in the Helena Salient of the Montana Disturbed Belt, West Central Montana
P. Ted Doughty, Kevin R. Chamberlain, Michael C. Pope
AAPG Special Volumes
... probability of detrital zircon analyses, derived from Ludwig (2004). Light gray filled boxes are histogram of detrital zircon grains; number of grains...
2013
Sedimentary Facies and Plate Tectonics of Equatorial Pacific
Edward L. Winterer
AAPG Bulletin
... feature in the central north Pacific: Nature, v. 225, p. 53-54. Ewing, J., M. Ewing, T. Aitken, and W. J. Ludwig, 1968, North Pacific sediment layers...
1973
Episodic Rifting and Subsidence in the South China Sea
Ke Ru , John D. Pigott
AAPG Bulletin
... the present magnetic anomalies and would be flanked by the older and shallower oceanic crust, which was thickened and deformed since the Mesozoic. Ludwig et...
1986
Petroleum Geology of the Upper Jurassic and Lower Cretaceous, Baltimore Canyon Trough, Western North Atlantic Ocean (1)
B. E. PRATHER
AAPG Bulletin
... manual: AAPG Geological Methods in Exploration 1. Tucholke, B. E., R. E. Houtz, and W. J. Ludwig, 1982, Map of sediment thickness and depth to basement...
1991
Petroleum-charge history of Paleozoic carbonates in the Tahe oil field, Tarim Basin, northwestern China: Insights from oil geochemistry, fluid inclusion, and U-Pb dating
Hao Xu, Xiaowen Guo, Zicheng Cao, Tiago M. Alves, Ze Tao, Bing Wang, Jiaxu Chen, Gaokun Zuo, Xuyou Zhang, and Tao Luo
AAPG Bulletin
... without external constraints, and the U-Pb ages were determined using Isoplot 3.75 software based on the lower intercept of Tera-Wasserburg (Ludwig...
2025
Timing of porosity loss and hydrocarbon charging of the Ordovician carbonate reservoirs in the Shunbei oil field, Tarim Basin, northwestern China
Bin Wang, Xiaowen Guo, Zicheng Cao, Tiago M. Alves, Yongqiang Zhao, Ze Tao, Jiaxu Chen, and Yi Yang
AAPG Bulletin
... on Tera-Wasserburg concordia plots using the Isoplot 3.75 software of Ludwig (2003) to determine the U-Pb age of each sample. The calibrated 238U/206Pb...
2025
Anatomy and provenance of a typical transgressive sandstone: the Lower Cretaceous Martin House Formation, Northern Canada
Julia E. A. Davison, Benjamin G. Daniels, Stephen M. Hubbard, Larry M. Heaman, Thomas Hadlari
Bulletin of Canadian Energy Geoscience (CEGA)
... of Canadian Petroleum Geology, v. 57, n. 3, p. 350–386. Ludwig, K.R. 1998. On the treatment of concordant uranium-lead ages. Geochimica et Cosmochimica Acta, v...
2024
TAPHONOMY, GEOLOGICAL AGE, AND PALEOBIOGEOGRAPHY OF LOTOSAURUS ADENTUS (ARCHOSAURIA: POPOSAUROIDEA) FROM THE MIDDLE-UPPER TRIASSIC BADONG FORMATION, HUNAN, CHINA
CEDRIC J. HAGEN, ERIC M. ROBERTS, CORWIN SULLIVAN, JUN LIU, YANYIN WANG, PRINCE C. OWUSU AGYEMANG, XING XU
PALAIOS
... Achterbergh et al. 2001) was employed for data reduction and the data were assessed statistically using ISOPLOT (Ludwig 2012). All grains younger than...
2018
A Fossil Forest from Italy Reveals that Wetland Conifers Thrived in Early Permian Peri-Tethan Pangea
Steffen Trümper, Ronny Rößler, Corrado Morelli, Karl Krainer, Sara Karbacher, Björn Vogel, Matteo Antonelli, Enrico Sacco, Evelyn Kustatscher
PALAIOS
..., Italy 9 Department of Earth and Environmental Sciences, Paleontology and Geobiology, Ludwig-Maximilians-Universität M€nchen, Richard-Wagner-Straße 10...
2023
Paleogeographic implications of a multi-parameter Paleogene provenance dataset (Transylvanian Basin, Romania)
Gabriella Obbágy, István Dunkl, Sándor Józsa, Lóránd Silye, Róbert Arató, Nils Keno Lünsdorf, Hilmar von Eynatten
Journal of Sedimentary Research (SEPM)
... by detrital zircon U–Pb age dating and geochemistry: Swiss Journal of Geosciences, v. 111, p. 399– 416. Ludwig, K.R., 2012, User's manual for Isoplot 3.75...
2021
The Zambezi deep-sea fan: mineralogical, REE, Zr/Hf, Nd-isotope, and zircon-age variability in feldspar-rich passive-margin turbidites
Eduardo Garzanti, Germain Bayon, Pieter Vermeesch, Marta Barbarano, Guido Pastore, Alberto Resentini, Bernard Dennielou, Gwenael Jouet
Journal of Sedimentary Research (SEPM)
... data on the conjugate continental margins: Tectonophysics, v. 530, p. 87– 101. Ludwig, K.R., 1998, On the treatment of concordant uranium–lead ages...
2022
Paleosol-derived paleoclimate and paleoenvironment reconstruction of the Rukwa Rift Basin, Tanzania: implications for faunal dispersal in the Miocene–Pliocene
Theresa J. Orr, Eric M. Roberts, Michael I. Bird, Cassy Mtelela, Patrick M. O'Connor, Nancy J. Stevens
Journal of Sedimentary Research (SEPM)
... evolution in the Malawi Rift (Chiwondo Beds, Malawi): Journal of Human Evolution, v . 90, p . 163– 175, doi:10.1016/j.jhevol.2015.10.014 . Ludwig, K., 2008...
2023
Basaltic sources but quartzose sand: sediment provenance, weathering, and recycling in the Uruguay River catchment
Eduardo Garzanti, Marta Barbarano, Pedro Dinis, Mara Limonta, Guido Pastore, Pieter Vermeesch, Giovanni Vezzoli
Journal of Sedimentary Research (SEPM)
... weathering: Earth and Planetary Science Letters, v. 443, p. 59–69. Ludwig, K.R., 1998, On the treatment of concordant uranium-lead ages: Geochimica et...
2025
Palichnology of the Lower Devonian Wapske Formation, Perth-Andover-Mount Carleton region, northwestern New Brunswick, eastern Canada
Yaojun Han, Ron K. Pickerill
Atlantic Geology
... (1985) demonstrated the geom etric nature of the repeated clothoid curves of Cochlichnus kochi Ludwig, concluding that this enabled effi cient...
1994
Genetic Global Geomorphology: A Prospectus
Elazar Uchupi, K. O. Emery
Special Publications of SEPM
... level Perch Nielsen Pastouret and Goslin 1974 Ludwig such as the highs along the highs along the equatorial 1977 Tucholke and 1982 Other...
1991
From Patterns to Processes: The Future of Reef Research
Wolfgang Kiesslinq, Erik Flügel, Jan Golonka
Special Publications of SEPM
... FRAKES LA PROBST FRAKES, L.A., PROBST, J.-L., AND LUDWIG, W., 1994, Latitudinal distribution J L AND LUDWIG W 1994 Latitudinal distribution...
2002
U-Pb zircon ages of volcanic ashes integrated with ammonite biostratigraphy, Fernie Formation (Jurassic), Western Canada, with implications for Cordilleran-Foreland basin connections and comments on the Jurassic time scale
Dinu I. Pană, Terence P. Poulton, Larry M. Heaman
CSPG Bulletin
.... The Journal of Geology, v. 96, n. 1, p. 47–60. Ludwig, K.R. 2008. User’s manual for Isoplot/Ex 3.7 and 4.15: a geochronological toolkit for Microsoft Excel...
2018
Precise age and petrology of Silurian-Devonian plutons in the Benjamin River - Charlo area, northern New Brunswick
Jean-Luc Pilote, Sandra M. Barr, Reginald A. Wilson, Sean McClenaghan, Sandra Kamo, Vicki J. McNicoll, Mary Lou Bevier
Atlantic Geology
... Brook pluton; and (c) and (d) Dickie Brook pluton. Plotting and age calculations are from Isoplot/Ex 3.00 (Ludwig 2003). Sample locations are shown...
2012
U Pb geochronology of Late Silurian (Wenlock to Pridoli) volcanic and sedimentary rocks, central Newfoundland Appalachians: targeting the timing of transient extension as a prelude to Devonian orogenic gold mineralization
Ian W. Honsberger, Wouter Bleeker, Sandra L. Kamo, Chelsea N. Sutcliffe, Hamish A.I. Sandeman
Atlantic Geology
... and plotted using the Isoplot program of Ludwig (1998, 2003). MSWD (mean square of weighted deviations) are expected to be around 1 or slightly higher...
2022