Results 71 to 80 of about 380 (177)

Geomorphology of Pereiro Massif, Northeast Brazil

Revista Brasileira de Geomorfologia
The Pereiro Massif, located in northeastern Brazil, has a lithostructural evolution resulting from different cycles, with records related to the Brazilian (Neoproterozoic) orogenic cycles, as well as Mesozoic tectonic events and Cenozoic climatic and ...
Edmundo Rodrigues de Brito, Frederico de Holanda Bastos, Vanda Carneiro de Claudino Sales, Abner Monteiro Nunes Cordeiro, Lionel Siame   +4 more
doaj   +1 more source

Background model for the NaI(Tl) crystals in COSINE-100

European Physical Journal C: Particles and Fields, 2018
The COSINE-100 dark matter search experiment is an array of NaI(Tl) crystal detectors located in the Yangyang Underground Laboratory (Y2L). To understand measured backgrounds in the NaI(Tl) crystals we have performed Monte Carlo simulations using the ...
P. Adhikari, G. Adhikari, E. Barbosa de Souza, N. Carlin, S. Choi, W. Q. Choi, M. Djamal, A. C. Ezeribe, C. Ha, I. S. Hahn, A. J. F. Hubbard, E. J. Jeon, J. H. Jo, H. W. Joo, W. G. Kang, M. Kauer, W. S. Kang, B. H. Kim, H. Kim, H. J. Kim, K. W. Kim, M. C. Kim, N. Y. Kim, S. K. Kim, Y. D. Kim, Y. H. Kim, V. A. Kudryavtsev, H. S. Lee, J. Lee, J. Y. Lee, M. H. Lee, D. S. Leonard, W. A. Lynch, R. H. Maruyama, F. Mouton, S. L. Olsen, H. K. Park, H. S. Park, J. S. Park, K. S. Park, W. Pettus, H. Prihtiadi, S. Ra, C. Rott, A. Scarff, N. J. C. Spooner, W. G. Thompson, L. Yang, S. H. Yong   +48 more
doaj   +1 more source

A new sampling technique for surface exposure dating using a portable electric rock cutter

Antarctic Record, 2012
Surface exposure dating using in situ cosmogenic nuclides has contributed to our understanding of Earth-surface processes. The precision of the ages estimated by this method is affected by the sample geometry; therefore, high accuracy measurements of the
Yusuke Suganuma, Hideki Miura, Jun’ichi Okuno   +2 more
doaj   +1 more source

A Model Framework for Scaling Pre‐Quaternary Cosmogenic Nuclide Production Rates

Geochemistry, Geophysics, Geosystems
Cosmogenic nuclide dating is an essential component of studying Earth surface processes, but it requires knowledge of how nuclide production rates vary in time and space.
M. Mijjum, K. E. Bristol, R. K. Bono, C. J. Sprain, N. Lifton, M. M. Tremblay   +5 more
doaj   +1 more source

Remote Mapping of Bedrock for Future Cosmogenic Nuclide Exposure Dating Studies in Unvisited Areas of Antarctica

Remote Sensing
Cosmogenic nuclide exposure dating is an important technique for reconstructing glacial histories. Many of the most commonly applied cosmogenic nuclides are extracted from the mineral quartz, meaning sampling of felsic (silica-rich) rock is often ...
Jonathan R. Adams, Philippa J. Mason, Stephen J. Roberts, Dylan H. Rood, John L. Smellie, Keir A. Nichols, John Woodward, Joanne S. Johnson   +7 more
doaj   +1 more source

Rapid Uplift, yet Slow Denudation of the Suckling‐Dayman Metamorphic Core Complex in Tropical Papua New Guinea

Geophysical Research Letters
A linear relationship between rates of physical erosion and chemical weathering is apparent in slowly eroding landscapes. Whether the relationship remains linear in rapidly eroding landscapes is less clear.
J. E. Österle, K. P. Norton, C. E. Lukens, T. A. Little, M. Mizera, S. M. Webber, K. Wilcken   +6 more
doaj   +1 more source

Quantifying the High Early Solar Cosmic-Ray Flux with Cosmogenic Neon Isotopes in Refractory Minerals

The Astrophysical Journal
An enhancement in the activity of the early young Sun resulting in a high charged particle flux has been invoked to explain excesses in spallation-induced nuclides in primitive planetary materials.
Xin Yang, Fred J. Ciesla, Philipp R. Heck   +2 more
doaj   +1 more source

The first Miocene fossils from coastal woodlands in the southern East African Rift. [PDF]

iScience, 2023
Bobe R, Aldeias V, Alemseged Z, Anemone RL, Archer W, Aumaître G, Bamford MK, Biro D, Bourlès DL, Doyle Boyd M, Braun DR, Capelli C, d'Oliveira Coelho J, Habermann JM, Head JJ, Keddadouche K, Kupczik K, Lebatard AE, Lüdecke T, Macôa A, Martínez FI, Mathe J, Mendes C, Paulo LM, Pinto M, Presnyakova D, Püschel TA, Regala FT, Sier M, Ferreira da Silva MJ, Stalmans M, Carvalho S.   +31 more
europepmc   +1 more source

Erosion rate study at the Allchar deposit (Macedonia) based on radioactive and stable cosmogenic nuclides (²⁶Al, ³⁶Cl, ³He, and ²¹Ne). [PDF]

Geochem Geophys Geosyst, 2016
Pavićević MK, Cvetković V, Niedermann S, Pejović V, Amthauer G, Boev B, Bosch F, Aničin I, Henning WF.   +8 more
europepmc   +1 more source

Location, location, location: survival of Antarctic biota requires the best real estate. [PDF]

Biol Lett, 2023
Stevens MI, Mackintosh AN.
europepmc   +1 more source