Results 81 to 90 of about 2,993,327 (417)

Sequence stratigraphy and uranium mineralization model of uranium-bearing rock series in the southern margin of Erlian Basin

矿业科学学报, 2018
Based on drilling data, seismic sections and sample test results, the theory of continental to sequence stratigraphy was applied to investigate uranium accumulation of the Early Cretaceous uranium-bearing rock series in the southern margin of Erlian ...
Zhao Yue, Shao Longyi, Xu Qiang, Zhao Xin, Wang Jianxin, Ding Rong   +5 more
doaj   +1 more source

Bayesian classification for dating archaeological sites via projectile points [PDF]

arXiv, 2020
Dating is a key element for archaeologists. We propose a Bayesian approach to provide chronology to sites that have neither radiocarbon dating nor clear stratigraphy and whose only information comes from lithic arrowheads. This classifier is based on the Dirichlet-multinomial inferential process and posterior predictive distributions.
arxiv  

Dating glacier ice of the last millennium by quantum technology [PDF]

, 2018
Radiometric dating with 39Ar covers a unique timespan and offers key advances in interpreting environmental archives of the last millennium. Although this tracer has been acknowledged for decades, studies so far have been limited by the low abundance and radioactivity, thus requiring huge sample sizes.
arxiv   +1 more source

The Monterey event in the Mediterranean: A record from shelf sediments of Malta [PDF]

, 1996
Oligo-Miocene carbonate platform and shelf sediments outcropping on the Maltese Islands provide an excellent archive of the paleoceanography of the central Mediterranean.
Jacobs, E, Shields, G, Stille, P, Weissert, H   +3 more
core   +1 more source

The influence of syn‐depositional compaction on clastic sediment distribution in river‐dominated deltas: A modelling study

The Depositional Record, EarlyView.
The impact of syn‐depositional compaction on the sedimentation distribution and the interdependency between different delta areas related to the sediment budget are not fully understood. Our result shows that compaction creates additional accommodation space that leads to more sedimentation in the delta plain, while limiting sediment delivery towards ...
A. A. Valencia, J. E. A. Storms, H. R. A. Jagers, H. van der Vegt   +3 more
wiley   +1 more source

Bayeslands: A Bayesian inference approach for parameter uncertainty quantification in Badlands [PDF]

Computers & Geoscience, Volume 131, October 2019, Pages 89-101, 2018
Bayesian inference provides a rigorous methodology for estimation and uncertainty quantification of parameters in geophysical forward models. Badlands (basin and landscape dynamics model) is a landscape evolution model that simulates topography development at various space and time scales.
arxiv   +1 more source

Anatomy and origin of authochthonous late Pleistocene forced regression deposits, east Coromandel inner shelf, New Zealand: implications for the development and definition of the regressive systems tract [PDF]

, 2004
High-resolution seismic reflection data from the east Coromandel coast, New Zealand, provide details of the sequence stratigraphy beneath an autochthonous, wave dominated inner shelf margin during the late Quaternary (0-140 ka). Since c.
Bard E., Bard E., Bond G., Bradshaw B. E., Bradshaw B. E., Browne G. H., Chappell J., Chiocci F. L., Dansgaard W., Davis R. A., Emery D., Hart B. S., Haywick D. W., Hernández‐Molina F. J., Hunt D., Hunt D., Kitamura A., Kolla V., Kolla V., Marks G. P., Marshall J. F., Martinson D. G., Mellere D., Mitchum R. M., Morton R. A., Naish T., Nummedal D., Plint A. G., Plint A. G., Plint A. G., Plint A. G., Pomar L., Posamentier H. W., Posamentier H. W., Posamentier H. W., Roy P. S., Roy P. S., Saul G., Schofield J. C., Shackleton N. J., Tesson M. R., Thom B. G., Thom B. G., Thom B. G., Thrasher G. P., Trincardi F., Vail P. R., Van Wagoner J. C., Van Wagoner J. C., Wright I. C., Wright I. C.   +50 more
core   +2 more sources

Anatomy of modern sedimentary volcanoes produced by gas‐charged groundwater liquefaction, Lake Powell, Hite, Utah: Implications for the recognition and interpretation of ancient sedimentary volcanoes

The Depositional Record, EarlyView.
Two non‐seismically generated sedimentary volcanoes were excavated on the Colorado River delta in Lake Powell, Utah, USA, in order to characterise the internal structures. Sedimentary volcanoes are commonly employed as tools in palaeoseismic reconstruction, thus it is important to establish criteria to differentiate non‐seismic‐generated sedimentary ...
Michael C. Wizevich, Edward L. Simpson, Abigail Underwood, Laura Sherrod, Kelsey Livingston, Emily Bogner, Margariete Malenda   +6 more
wiley   +1 more source

Regional‐Scale Landscape Response to an Extreme Precipitation Event From Repeat Lidar and Object‐Based Image Analysis

Earth and Space Science, Volume 9, Issue 12, December 2022., 2022
Abstract Extreme precipitation events may cause flooding, slope failure, erosion, deposition, and damage to infrastructure over a regional scale, but the impacts of these events are often difficult to fully characterize. Regional‐scale landscape change occurred during an extreme rain event in June 2012 in northeastern Minnesota.
S. B. DeLong, M. N. Hammer, Z. T. Engle, E. M. Richard, A. J. Breckenridge, K. B. Gran, C. E. Jennings, A. Jalobeanu   +7 more
wiley   +1 more source

Automatic demarcation of sequence stratigraphy using the method of well logging multiscale data fusion

Petroleum Exploration and Development, 2009
Strata division with well logging utilizes the abrupt changing points or regions of signals, while the changing law of the wavelet modulus maxima under different scales can exactly describe the position and modality of the changing points.
Li Xia, Fan Yiren, Deng Shaogui, Wang Tongshan   +3 more
doaj