Publication date: June 2018
Source:Journal of Environmental Radioactivity, Volume 186
Author(s): Daniela Pittauer, Per Roos, Jixin Qiao, Walter Geibert, Marcus Elvert, Helmut W. Fischer
Radionuclide concentrations were studied in sediment cores taken at the continental slope of the Philippine Sea off Mindanao Island in the equatorial Western Pacific. High resolution deposition records of anthropogenic radionuclides were collected at this site. Excess 210Pb together with excess 228Th and anthropogenic radionuclides provided information about accumulation rates. Concentrations of Am and Pu isotopes were detected by gamma spectrometry, alpha spectrometry and ICP-MS. The Pu ratios indicate a high portion (minimum of 60%) of Pu from the Pacific Proving Grounds (PPG). This implies that the transport of PPG derived plutonium with the Mindanao Current southward is similarly effective as the previously known transport towards the north with the Kuroshio Current. The record is compared to other studies from northwest Pacific marginal seas and Lombok basin in the Indonesian Archipelago. The sediment core top was found to contain a 6 cm thick layer dominated by terrestrial organic matter, which was interpreted as a result of the 2012 Typhoon Pablo-related fast deposition.
from Imaging via alkiviadis.1961 on Inoreader http://ift.tt/2Gyel0m
Εγγραφή σε:
Σχόλια ανάρτησης (Atom)
Δημοφιλείς αναρτήσεις
-
Background Hyperthyroidism is associated with increased thrombotic risk. As contact system activation through formation of neutrophil extrac...
-
Abstract Objective To evaluate Chinese medicine (CM) formula Bazheng Powder (八正散) as an alternative therapeutic option for female patients...
-
Family: Know the drill New Straits Times Online One of my sons had this so often that his tonsils were removed. ... However, for som...
-
Abstract Unsaturated fatty acid biohydrogenation products from beef fat and pure fatty acids were subjected to the Ames Salmonella mutage...
-
UM-Chor1: establishment and characterization of the first validated clival chordoma cell line. J Neurosurg. 2017 Apr 21;:1-9 Authors:...
-
Impact of habitat loss and fragmentation on reproduction, dispersal and species persistence for an endangered Chilean tree Abstract Survival...
-
Publication date: Available online 10 May 2017 Source: Journal of Dairy Science Author(s): R.E. Vibart, M. Tavendale, D. Otter, B.H. Schw...
-
Competency-based psychiatric education for Indian medical undergraduates Vijayalakshmi Pernenkil Archives of Mental Health 2019 20(1):1-2 Be...
-
Related Articles Developmental control of macrophage function. Curr Opin Immunol. 2017 Dec 13;50:64-74 Authors: Bonnardel J, Guillia...
Δεν υπάρχουν σχόλια:
Δημοσίευση σχολίου