Results 21 to 30 of about 1,035,856 (262)

High field strength element systematics and Lu-Hf & Sm-Nd garnet geochronology of orogenic eclogites [PDF]

, 2008
Concerning the Bulk Silicate Earth (BSE), the depleted mantle and the continental crust are thought to balance the budget of refractory and lithophile elements, resulting in complementary trace element patterns.
Schmidt, Alexander
core   +1 more source

A method for apatite Lu–Hf geochronology and elimination of the negative effects of phosphate inclusions on garnet Lu–Hf and Sm–Nd geochronology by chemical leaching [PDF]

, 2019
Apatite is a ubiquitous accessory mineral found in a wide variety of rocks. It has a highly variable chemical composition and contains sufficient isotopes for four radioactive dating systems with Lu–Hf being one of them.
ZHANG, CHAO
core   +4 more sources

Cross sections for (n, 2n), (n, p), (n, a) and (n, n′) reactions on hafnium isotopes around the neutron energy of 14 MeV

New Journal of Physics, 2020
In view of the fact that the fast-neutron experimental cross-section data of hafnium which is an important structural material of fusion reactor are few and there are the great differences in their evaluation values, several activation cross sections of (
Yong Li, Fengqun Zhou, Yueli Song, Xinyi Chang, Pengfei Ji, Xiaojun Sun, Guoqiang Li   +6 more
doaj   +1 more source

Implications of Nd isotopic mapping for crustal composition and metallogenesis in the Sanjiang orogenic belt (SW China)

Frontiers in Earth Science, 2023
The Sanjiang orogenic belt, located in southwestern China and the southeastern Tibetan Plateau, includes a variety of economically important metal deposits.
Lingling Yuan, Peng Chai, Zengqian Hou, Yuanchuan Zheng, Haihui Quan   +4 more
doaj   +1 more source

Reconciliation of the excess 176 Hf conundrum in meteorites: Recent disturbances of the Lu-Hf and Sm-Nd isotope systematics [PDF]

, 2017
The long-lived 176Lu-176Hf and 147Sm-143Nd radioisotope systems are commonly used chronometers, but when applied to meteorites, they can reveal disturbances.
Bast, Rebecca, Kleine, Thorsten, Münker, Carsten, Carsten Münker, Stephan Taetz, Gopalan Srinivasan, Taetz, Stephan, Rebecca Bast, Mario Fischer-Gödde, Mezger, Klaus, Böhnke, Mischa, Böhnke, M., Münker, C., Srinivasan, G., Fischer-Gödde, M., Scherer, E., Schmid-Beurmann, Hinrich, Mischa Böhnke, Scherer, Erik E., Srinivasan, Gopalan, Klaus Mezger, Hinrich Schmid-Beurmann, Kleine, T., Bast, R., Taetz, S., Mezger, K., Thorsten Kleine, Peter Sprung, Erik E. Scherer, Fischer-Gödde, Mario, Sprung, Peter, Sprung, P., Schmid-Beurmann, H.   +32 more
core   +1 more source

A comparison between in situ monazite Lu–Hf and U–Pb geochronology [PDF]

Geochronology
In complex metamorphic rocks, monazite U–Pb dates can span a wide concordant range, leading to ambiguous geological interpretations (e.g. slow protracted cooling versus multiphase growth).
A. T. De Vries Van Leeuwen, A. T. De Vries Van Leeuwen, A. T. De Vries Van Leeuwen, S. Glorie, S. Glorie, M. Hand, M. Hand, J. Mulder, S. E. Gilbert   +8 more
doaj   +1 more source

A rapid and efficient ion-exchange chromatography for Lu–Hf, Sm–Nd, and Rb–Sr geochronology and the routine isotope analysis of sub-ng amounts of Hf by MC-ICP-MS [PDF]

, 2015
The development and improvement of MC-ICP-MS instruments have fueled the growth of Lu–Hf geochronology over the last two decades, but some limitations remain.
Fischer-Gödde, M., Stracke, A., Mezger, Klaus, Scherer, E. E., Bast, R., Sprung, P.   +5 more
core   +2 more sources

Table 1: Lu-Hf geochronology

, 2023
Garnet Lu-Hf geochronology data presented in the manuscript Formation of the Xigaze Metamorphic Sole under the Tibetan continental margin reveals generic characteristics of the subduction initiation process.
Matthijs A. Smit (10118464), Antoine Godet (16954156), Marco Maffione (11572117), Shun Li (11850579), Kip Hodges (2865995), Jared Butler (16954157), Douwe van Hinsbergen (8148261), François Fournier-Roy (16954104), Carl Guilmette (8148229)   +8 more
core   +1 more source

Digital radio and its application in the HF (2-30 MHz) band [PDF]

, 2004
The propagation environment at high frequencies (HF, 2-30 MHz) has a significant impact on the performance of radio systems (especially data communications).
Davies, Nigel Clement
core   +7 more sources

Rapid eclogitisation of the Dabie–Sulu UHP terrane: Constraints from Lu–Hf garnet geochronology [PDF]

, 2008
The Qinling–Dabie–Sulu orogenic belt in eastern China is one of the largest ultrahigh-pressure (UHP) terranes worldwide. Mineral Sm–Nd- and zircon U–Pb dating has been widely used to reveal the metamorphic history of this collisional orogen. However, the
Weyer, Stefan, Brey, Gerhard P., Scherer, Erik E., Mezger, Klaus, Hoefs, Jochen, Schmidt, Alexander, Xiao, Yilin   +6 more
core   +2 more sources