Results 121 to 130 of about 62,481 (313)

XRF-menetelmän kehitys ja validointi rauta- ja natriumpitoisuuden määrittämiseksi katalyytistä [PDF]

, 2018
Työn tavoitteena oli kehittää ja validoida kvantitatiivinen röntgenfluoresenssi-menetelmä (XRF) natrium- ja rautapitoisuuksien määrittämiselle käytetystä katalyytistä.
Korhonen, Kari
core  

XRF - geochemistry of sediment core PC29A

, 2014
XRF - geochemistry of sediment core ...
Konrad A Hughen (6959909), Bertrand, Sebastien, Sebastien Bertrand (4422325), Hughen, Konrad A, Sepúlveda, Julio, Silvio Pantoja (6963944), Pantoja, Silvio, Julio Sepúlveda (7383887)   +7 more
core   +1 more source

Geochemistry and Geochronology of Magmatic Rocks in Southwestern and Northeastern Cambodia: Implications for the Tectonic Evolution and Metallogenesis of the Loei Fold Belt

Geological Journal, EarlyView.
The composition of intrusive rocks suggests that the magma was likely generated in a subduction‐related setting. The arc crustal thickness in the Phnom Sro Ngam and Halo Prospects was probably < 40 km during emplacement. Zircon U–Pb age range indicates a correlation with Loei Fold Belt magmatic activity.
Sirisokha Seang, Khin Zaw, Kakda Kret, Ivan Belousov, Kotaro Yonezu, Koichiro Watanabe, Charles Makoundi   +6 more
wiley   +1 more source

Real-time elemental imaging of large dimension paintings with a novel mobile macro X-ray fluorescence (MA-XRF) scanning technique

, 2017
A novel mobile XRF scanner combining MA-XRF and micro-XRF techniques and allowing near real-time elemental imaging of macroscopic paintings.
Lighea Pappalardo, Claudia Caliri, Francesco Paolo Romano, Francesca Rizzo, Hellen Cristine Santos, Sandra Di Martino, Paolo Nicotra, Rizzo F, Romano FP, Caliri C, Pappalardo L, Di Martino S, Rizzo Francesca, Santos HC, Nicotra P   +14 more
core   +1 more source

Late Pleistocene Volcanic Rocks From Tengchong Volcanic Field at SE Tibetan Plateau: Constraints on Petrogenesis and Mantle and Crustal Processes

Geological Journal, EarlyView.
Early zircon saturation and crystallisation occur in mafic (52–54 wt.% SiO2) lavas at Tengchong volcanic field. These early formed zircons with high δ18O (6.6‰–7.9‰) indicates mantle enrichment by subducted supracrustal materials. ABSTRACT Late Pleistocene (< 0.2 Ma) mafic and evolved volcanic rocks occur in northern Tengchong Volcanic Field, SE ...
Lizhu Wang, Haibo Zou
wiley   +1 more source

XRF element scanning on composite core JH05

, 2010
XRF element scanning on composite core ...
Lauterbach, Stefan, Andersen, Nils, von Grafenstein, Ulrich, Hüls, Matthias, Tadeusz Namiotko (6964748), DecLakes participants, Krystyna Milecka (6964745), Dan L Danielopol (6964739), Milecka, Krystyna, Matthias Hüls (6964742), Namiotko, Tadeusz, Birgit Plessen (7883495), Dulski, Peter, Brauer, Achim, Peter Dulski (6960329), DecLakes participants (6964757), Stefan Lauterbach (6964736), Danielopol, Dan L, Nils Andersen (6960176), Plessen, Birgit, Ulrich von Grafenstein (6964754), Achim Brauer (6960317)   +21 more
core   +1 more source

A Reassessment of Petrochemistry of ~1.2 Ga Tonalitic Rocks of the Northern Tugela Terrane, Natal Metamorphic Belt, South Africa: Further Constraints on the Evolution of This Belt

Geological Journal, EarlyView.
Our petrochemical studies on ~1.2 Ga granitoids of the Natal Metamorphic Belt, South Africa, do not suggest any property similar to Phanerozoic‐style subduction‐related granitoids. Plot of Kotongweni Tonalite in Y versus Sr diagram (after Moyen 2011), note that most samples have Sr/Y < 50.
Palesa Leuta, Saumitra Misra, Thembiso O. Basupi   +2 more
wiley   +1 more source

XRF data of sediment core GeoB4905-4

, 2003
XRF data of sediment core GeoB4905-
Schneider, Ralph R, Gerold Wefer (6958886), Adesina T Adegbie (6967286), Röhl, Ursula, Adegbie, Adesina T, Wefer, Gerold, Ralph R Schneider (6958787), Ursula Röhl (6959540)   +7 more
core   +1 more source

Apatite in Carbonatite Preserving Primary Magmatic, Post‐Magmatic Overgrowth, and Post India‐Asia Collision‐Related Hydrothermal Alteration: Evidenced From U–Pb Isotope and Trace Element Geochemistry

Geological Journal, EarlyView.
U–Pb isotope and trace element geochemistry of apatite from carbonatites of Peshawar Plain Alkaline Igneous Province, western Himalaya shows Permo‐Carboniferous magmatism, an additional magmatic pulse during Cretaceous, and post‐magmatic hydrothermal/metasomatism during Oligocene. ABSTRACT U–Pb isotope and trace element geochemistry of apatite combined
Mehboob ur Rashid, Hafiz U. Rehman, Hao‐Yang Lee, Sun‐Lin Chung, Kaushik Das, Kazumasa Aoki, Muhammad Jawad Zeb, Nasir Ahmad, Muhammad Hussain, Hiroshi Yamamoto   +9 more
wiley   +1 more source

Sediment elemental composition (XRF) of sediment core GeoB19973-2

XRF Core Scanner data of sediment core GeoB19973-2 from Baffin Bay were collected every two centimetres downcore over an active area of 15 mm² with a downcore slit size of 10 mm using generator settings of 10 and 30 kV directly at the split core surface ...
Weiser, Jens, Hebbeln, Dierk
core   +1 more source