Results 31 to 40 of about 4,674,957 (389)

Cladistics and Stratigraphy

Geosciences, 2023
Using cladistic phylogenies (cladograms) to evaluate stratigraphy (taxon distributions and correlations) necessitates various assumptions that include all of the assumptions built into the cladogram, assuming the cladogram is “correct” and that new taxa ...
Spencer G. Lucas
doaj   +1 more source

Effects of Bark Beetle Attacks on Forest Snowpack and Avalanche Formation – Implications for Protection Forest Management [PDF]

, 2019
Healthy, dense forests growing in avalanche terrain reduce the likelihood of slab avalanche release by inhibiting the formation of continuous snow layers and weaknesses in the snowpack.
Bebi, Peter, Giunta, Andrew D., Hagenmuller, Pascal, Jenkins, Michael J., Schneebeli, Martin, Teich, Michaela   +5 more
core   +3 more sources

An integrated biostratigraphy and seismic stratigraphy for the late Neogene continental margin succession in northern Taranaki Basin, New Zealand [PDF]

, 2006
Our aim has been to develop an integrated biostratigraphy and seismic stratigraphy for the Pliocene and Pleistocene formations (Ariki, Mangaa, Giant Foresets) in northern Taranaki Basin to better understand the evolution of the modern continental margin ...
Armentrout JM, Armstrong PA, Bé AWH, Bé AWH, Crundwell MP, Hansen RJ, Hayward BW, Hayward BW, Hornibrook NdeB, Hoskins RH, Hoskins RH, Mitchum RM, Murray JW, Pilaar WFH, Shell BP, Strong CP, Vail PR, Waghorn DB   +17 more
core   +2 more sources

Strontium isotope stratigraphy in the Late Cretaceous: Numerical calibration of the Sr isotope curve and intercontinental correlation for the campanian [PDF]

, 1993
The white Chalk exposed in quarries at Lagerdorf and Kronsmoor, northwestern Germany, provides a standard section for the European Upper Cretaceous.
Chen, M, Gale, AS, Kennedy, WJ, McArthur, JM, Thirwall, MF   +4 more
core   +1 more source

Direct multi-modal inversion of geophysical logs using deep learning [PDF]

Earth and Space Science, 9, e2021EA002186 (2022), 2021
Geosteering of wells requires fast interpretation of geophysical logs, which is a non-unique inverse problem. Current work presents a proof-of-concept approach to multi-modal probabilistic inversion of logs using a single evaluation of an artificial deep neural network (DNN).
arxiv   +1 more source

Das Quartärprofil am Steilufer der Elbe bei Lauenburg [PDF]

Eiszeitalter und Gegenwart, 1965
Stratigraphy and exposure of beds along the bluffs of the river Elbe west of Lauenburg are described. Deposits dated as Miocene, Elster Ice Age and Holstein Interglacial have been encountered in borings only.
K.-D. Meyer
doaj   +1 more source

Zur Gliederung der Holstein- und Saalezeit im östlichen Harzvorland [PDF]

Eiszeitalter und Gegenwart, 1965
A review is given on the results of researches which were undertaken in the Pleistocene of the eastern foot-hills of the Harz. A terrace could be detected where the gravels have been accumulated during a cold period in the Holstein stage.
R. Ruske
doaj   +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

Employing magma ocean crystallization models to constrain structure and composition of the lunar interior [PDF]

, 2021
The process of lunar magma ocean solidification provides constraints on the properties of distinct chemical reservoirs in the lunar mantle that formed during the early evolution of the Moon. We use a combination of phase equilibria models consistent with experimental results on lunar magma ocean crystallization to study the effect of bulk silicate Moon
arxiv   +1 more source

New regional stratigraphic insights from a 3D geological model of the Nasia sub-basin, Ghana, developed for hydrogeological purposes and based on reprocessed B-field data originally collected for mineral exploration [PDF]

www.solid-earth.net/11/349/2020/, 2020
Reprocessing of regional-scale airborne electromagnetic data (AEM) is used to build a 3D geomodel of the Nasia sub-basin. The resulting 3D geomodel integrates all the prior pieces of information brought by electromagnetic data, lithologic logs, and prior geological knowledge.
arxiv   +1 more source