Thermochronology (U-Th-Sm)/He
The chronology and tectonic style of landscape evolution along the elevated Atlantic continental margin of South Africa resolved by joint apatite fission track and (U Th Sm)/He thermochronology
... (U-Th-Sm)/He thermochronology to achieve a better understanding on the chronology and tectonic style of landscape evolution across this ...
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Contrasting Mesozoic evolution across the boundary between on and off craton regions of the South African plateau inferred from apatite fission track and (U Th Sm)/He thermochronology
... Abstract The timing and mechanisms involved in creating the elevated, low-relief topography of the South African plateau remain unresolved. Here we constrain the thermal history of the Southwest African plateau since 300 ...
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Iron Oxide Geochronology to Constrain the Formation of Soils and Paleosols
... and thermochronology (Farley and Flowers, ...3 He to study when cosmic-ray exposure occurred in goethite pisoliths of the Bohnerz deposits of Central ...3 He concentrations in pisoliths of a paleosol ...
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Helium trapping in apatite damage: insights from (U Th Sm)/He dating of different granitoid lithologies
... Recanati, A. and Gautheron, C. and Barbarand, J. and Missenard, Y. and Pinna-Jamme, R. and Tassan-Got, L. and Carter, Andrew and Douville, E. and Bordier, L. and Pagel, M. and Gallagher, K. (2017) Helium trapping in ...
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Probing anomalous off-shell electroweak dipole moment of the top quark
... The complete set of electroweak diagrams for the associated tbZ production is shown in Fig. 2. The first three diagrams give non-zero contribution with considered anomalous coupling while the last two contain only ...
7
Logarithmic asymptotics in Queueing Theory and Risk Theory
... ensures th at, no m atter w hat the starting condition may be, the waiting tim e becomes zero after an almost surely finite num ber of customers have passed through the ...noted th a t if, along with his ...
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Application of Multivariate Statistic of U, Th and Pb Concentrations and Pb Isotopic Signatures in the Assessment of Geogenic and Anthropogenic Sources in a U Mineralized Area
... of U and Th whose increase in concentration leads to an increase in the score value for the score of the samples in each ...in U rather than Th, being the U enrichment due to anthrop- ...
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Die priesterskap van die gelowiges soos Calvyn dit gesien het
... D a t wij d a a rto e g eh e el onbekw aam zijn, d a t zulks e c h te r n ie t aan de geboden, m aar aan ons ligt. De W et is heilig, zij m oet niet alleen naar de le tte r , m a a r n a a r d e n g e e st g e h o ...
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Th-U-total Pb timing constraints on the emplacement of the granitoid pluton of Stolpen, Germany
... La, Sm and Nd, as well as other elements such as Y, Th and ...for Th-U-Pb ...chemical Th-U-total Pb method employing an elec- tron microprobe to constrain its age (Jercinovic and ...
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Extensional faulting on Tinos Island, Aegean Sea, Greece: how many detachments?
... Miocene detachments and a characteristic feature of these footwalls is that they cool rapidly as they are dragged toward the surface. Therefore low-temperature thermochro- nology is a powerful tool for establishing ...
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Optimum Heavy Water Percentage in Moderator for a Th-Pu-U Fueled Nuclear Reactor
... of Th-Pu-U fueled model of the LR-0 reactor when moderated by mixtures of heavy/light water at molecular ratios ranging from 0% up to 100% D2O at increments of 10% in ...
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U–Th and 10Be constraints on sediment recycling in proglacial settings, Lago Buenos Aires, Patagonia
... the U–Th ...234 U, 238 U and 230 ...using U–Th disequilibria series could be improved with better constraints on the relative mobility of 234 U and 238 ...
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Total kinetic energy and fragment mass distributions from fission of Th-232 and U-233
... The mass and energy of the fission fragments is found using a calculation based on conservation of mass and momentum that iteratively adjusts the masses and corrects for mass dependent variations such as the pulse height ...
6
Th(IV)/U(VI) Sorption on Modified SBA–15 Mesoporous Materials in Fixed–Bed Column
... The breakthrough curve for the adsorption of Th(IV) and U(VI) onto the studied sorbents are shown in Fig 7. The corresponding breakthrough time and exhaustion time are presented in Table 2. The breakthrough ...
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U and Th Determination in Natural Samples Using CR 39 and LR 115 Track Detectors
... Ratio of Th/U is calculated and represented in Figure 8 where the average ratio for all samples is 0.80 with stander deviation of 0.55. The variation of this ratio may be attri- buted to the collection of ...
5
Context Sensitive Electronic Dictionaries
... When the user leaves the mouse pointer over a word, it means that he needs information about that word and its context. The boundaries of the context are not precisely specified: it could be the entire sentence ...
5
Summary of the CKM 2010 Working Group on Rare Decays
... play the most important role (for decays of down-type quarks q represents the up and charm quarks, for charm decays it stands for down and strange quarks – T denotes the Gell-Mann matrices). Their Wilson coefficients are ...
17
Chemical U Th Pb monazite dating and the Proterozoic history of King Island, southeast Australia
... relationships within Grenville -age events in Australia, Antarctica and Laurentia. They recognised two stages of events, an earlier 1300 Ma event and a later 1100 -1000 Ma event in Mesoproterozoic Australia and ...
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U–Th isotopic microanalysis of zircon reference materials and KBSI working standards
... According to Wiedenbeck et al. (1995), the 91500 zircon specimen stored at the Harvard Mineralogical Museum originally consisted of a single crystal presumably col- lected from a porphyroblastic syenite gneiss in ...
8
Chronology of martian breccia NWA 7034 and the formation of the martian crustal dichotomy
... ancient U-Pu/Xe ages further demonstrate that these secondary thermal events did not significantly alter the distributions of U or Nd or cause significant diffusive loss of ...the U-Pb sys- tem in ...
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