Sediment production and transport from in situ-produced cosmogenic 10Be and river loads in the Napo River basin, an upper Amazon tributary of Ecuador and Peru

2011 ◽  
Vol 31 (1) ◽  
pp. 45-53 ◽  
Author(s):  
H. Wittmann ◽  
F. von Blanckenburg ◽  
J.L. Guyot ◽  
A. Laraque ◽  
C. Bernal ◽  
...  
Keyword(s):  
River Basin ◽  
Sediment Production ◽  
River Loads ◽  
Cosmogenic 10Be

Sediment production and delivery in the Amazon River basin quantified by in situ-produced cosmogenic nuclides and recent river loads

2010 ◽  
Vol 123 (5-6) ◽  
pp. 934-950 ◽  
Author(s):  
H. Wittmann ◽  
F. von Blanckenburg ◽  
L. Maurice ◽  
J.-L. Guyot ◽  
N. Filizola ◽  
...  
Keyword(s):  
River Basin ◽  
Cosmogenic Nuclides ◽  
Amazon River ◽  
Amazon River Basin ◽  
Sediment Production ◽  
River Loads

scholarly journals Denudation systematics inferred from in situ cosmogenic <sup>10</sup>Be concentrations in fine (50–100 μm) and medium (100–250 μm) sediments of the Var River basin, southern French Alps

2019 ◽  
Author(s):  
Apolline Mariotti ◽  
Pierre-Henri Blard ◽  
Julien Charreau ◽  
Carole Petit ◽  
Stéphane Molliex ◽  
...  
Keyword(s):  
River Basin ◽  
Glacial Cycles ◽  
French Alps ◽  
Denudation Rates ◽  
Cosmogenic 10Be ◽  
Quartz Grains

Abstract. Marine sedimentary archives are well dated and often span several glacial cycles; cosmogenic 10Be concentrations in their detrital quartz grains could thus offer the opportunity to reconstruct a wealth of past denudation rates. However, these archives often comprise sediments much finer (

CONSTRAINING GLACIAL HISTORY AND PROCESS ON MOUNT MANSFIELD, VERMONT'S HIGHEST PEAK, WITH IN SITU COSMOGENIC 10BE AND 14C

2018 ◽  
Author(s):  
Lee B. Corbett ◽  
◽  
Paul R. Bierman ◽  
Jeremy D. Shakun ◽  
P. Thompson Davis ◽  
...  
Keyword(s):  
Glacial History ◽  
Cosmogenic 10Be

Influence of periglacial cover beds on in situ-produced cosmogenic 10Be in soil sections

Geomorphology ◽  
2003 ◽  
Vol 49 (3-4) ◽  
pp. 255-267 ◽  
Author(s):  
M Schaller ◽  
F von Blanckenburg ◽  
H Veit ◽  
P.W Kubik
Keyword(s):  
Cosmogenic 10Be

In situ cosmogenic 10Be, 26Al, and 21Ne dating in sediments from the Guizhou Plateau, southwest China

2021 ◽  
Author(s):  
Ye Yang ◽  
Yu Liu ◽  
Yan Ma ◽  
Sheng Xu ◽  
Cong-Qiang Liu ◽  
...  
Keyword(s):  
Southwest China ◽  
Cosmogenic 10Be ◽  
Guizhou Plateau

scholarly journals Revisiting the age of the Jumento volcano, Chichinautzin Volcanic Field (Central Mexico), using in situ-produced cosmogenic 10Be

2018 ◽  
Vol 366 ◽  
pp. 112-119 ◽  
Author(s):  
Jesús Alcalá-Reygosa ◽  
José Luis Arce ◽  
Irene Schimmelpfennig ◽  
Esperanza Muñoz Salinas ◽  
Miguel Castillo Rodríguez ◽  
...  
Keyword(s):  
Volcanic Field ◽  
Central Mexico ◽  
Cosmogenic 10Be

scholarly journals Denudation systematics inferred from in situ cosmogenic <sup>10</sup>Be concentrations in fine (50–100 µm) and medium (100–250 µm) sediments of the Var River basin, southern French Alps

2019 ◽  
Vol 7 (4) ◽  
pp. 1059-1074 ◽  
Author(s):  
Apolline Mariotti ◽  
Pierre-Henri Blard ◽  
Julien Charreau ◽  
Carole Petit ◽  
Stéphane Molliex ◽  
...  
Keyword(s):  
Glacial Cycles ◽  
Size Fractions ◽  
French Alps ◽  
Fine Grained ◽  
Denudation Rates ◽  
Variable Morphology ◽  
Cosmogenic 10Be ◽  
The Impact ◽  
Quartz Grains

Abstract. Marine sedimentary archives are well dated and often span several glacial cycles; cosmogenic 10Be concentrations in their detrital quartz grains could thus offer the opportunity to reconstruct a wealth of past denudation rates. However, these archives often comprise sediments much finer (<250 µm) than typically analyzed in 10Be studies, and few studies have measured 10Be concentrations in quartz grains smaller than 100 µm or assessed the impacts of mixing, grain size, and interannual variability on the 10Be concentrations of such fine-grained sediments. Here, we analyzed the in situ cosmogenic 10Be concentrations of quartz grains in the 50–100 and 100–250 µm size fractions of sediments from the Var basin (southern French Alps) to test the reliability of denudation rates derived from 10Be analyses of fine sands. The Var basin has a short transfer zone and highly variable morphology, climate, and geology, and we test the impact of these parameters on the observed 10Be concentrations. Both analyzed size fractions returned similar 10Be concentrations in downstream locations, notably at the Var's outlet, where concentrations ranged from (4.02±0.78)×104 to (4.40±0.64)×104 atoms g−1 of quartz. By comparing expected and observed 10Be concentrations at three major river junctions, we interpret that sediment mixing is efficient throughout the Var basin. We resampled four key locations 1 year later, and despite variable climatic parameters during that period, interannual 10Be concentrations were in agreement within uncertainties, except for one upper subbasin. The 10Be-derived denudation rates of Var subbasins range from 0.10±0.01 to 0.57±0.09 mm yr−1, and spatial variations are primarily controlled by the average subbasin slope. The integrated denudation rate of the entire Var basin is 0.24±0.04 mm yr−1, in agreement with other methods. Our results demonstrate that fine-grained sediments (50–250 µm) may return accurate denudation rates and are thus potentially suitable targets for future 10Be applications, such as studies of paleo-denudation rates using offshore sediments.

scholarly journals Quantifying soil loss with in-situ cosmogenic 10Be and 14C depth-profiles

2015 ◽  
Vol 27 ◽  
pp. 78-93 ◽  
Author(s):  
Réka-H. Fülöp ◽  
Paul Bishop ◽  
Derek Fabel ◽  
Gordon T. Cook ◽  
Jeremy Everest ◽  
...  
Keyword(s):  
Soil Loss ◽  
Depth Profiles ◽  
Cosmogenic 10Be

scholarly journals Glaciation history of Queen Maud Land (Antarctica) reconstructed from in-situ produced cosmogenic 10Be, 26Al and 21Ne

Polar Science ◽  
2010 ◽  
Vol 4 (1) ◽  
pp. 42-61 ◽  
Author(s):  
Marcus Altmaier ◽  
Ulrich Herpers ◽  
Georg Delisle ◽  
Silke Merchel ◽  
Ulrich Ott
Keyword(s):  
History Of ◽  
Cosmogenic 10Be
Sign in / Sign up

Export Citation Format

Share Document