Search
Search Results
-
Spatial distribution of strontium and neodymium isotopes in South America: a summary for provenance research
Isotopic methods have become an important tool in the study of natural processes and countless applications have proven valuable in several research...
-
Applications of Neodymium Isotopes to Ore Deposits and Metallogenic Terranes; Using Regional Isotopic Maps and the Mineral Systems Concept
Although radiogenic isotopes historically have been used in ore genesis studies for age dating and as tracers, here we document the use of regional-...
-
Applications of Lead Isotopes to Ore Geology, Metallogenesis and Exploration
Although lead isotopes are most commonly used to date geological events, including mineralizing events, they also can provide information on many...
-
Deep-Water Circulation over the Last Two Glacial Cycles Reconstructed from Authigenic Neodymium Isotopes in the Equatorial Indian Ocean (Core HI1808-GPC04)
We reconstructed the past deep-water character of the equatorial Indian Ocean using the isotope ratio of neodymium ( ε Nd ) in the Fe–Mn coating of...
-
A 47.0-kyr Record of Strontium and Neodymium Isotopes of the Lake Sediments from Dahu Swamp in East Nanling Mountains (South China): Implications for the Source of Sediments and Climatic Changes
AbstractIn this study, we used a ~47.0-kyr record of Sr–Nd isotopic data derived from lake sediments in Dahu swamp in the eastern Nanling Mountains...
-
Neodymium isotope variations in the Flatreef on Macalacaskop, northern limb, Bushveld Complex
The origin of the recently discovered Flatreef remains debated due to the pronounced interaction of the magmatic rocks with sedimentary floor rocks,...
-
Geochronology, Geochemistry, and Sr-Nd-Hf Isotopes of the Diorite Porphyrites from the Weining Beishan Area, Ningxia Hui Autonomous Region: Constraints on Their Source and Tectonic Implications
The Weining Beishan area of Ningxia Hui Autonomous Region is located at on the western edge of the Helanshan tectonic belt, which is a tectonic joint...
-
Early Cretaceous to Middle Eocene Magmatic Evolution of Eastern Pontides: Zircon U-Pb Ages and Hf Isotopes, and Geochemical and Sr-Nd Isotopic Constraints from Multiphase Granitoids, NE Turkey
The Eastern Pontides orogenic belt (EPOB) represents a significant segment of the Alpine-Himalayan orogenic belt that evolved from the Paleozoic to...
-
Sr–Nd isotopes of Sabalan Volcano, NW Iran: insights into the origin of collisional adakites and geodynamic implications
Late Miocene-Quaternary adakitic rocks are widely distributed in northwestern Iran and are a key component of magmatism in the Turkish–Iranian...
-
Study of Rb-Sr and Sm-Nd Isotopic Systems in Chondrules of the Sierra Gorda 009 and 013 Chondrites and Possible Mechanisms of Their Disturbance
AbstractWe conducted a first investigation of the Rb-Sr and Sm-Nd isotopic systems of chondrules from rare metal-rich chondrites: the G chondrite...
-
Active Nordic Seas deep-water formation during the last glacial maximum
The Nordic Seas are the primary location where the warm waters of the North Atlantic Current densify to form North Atlantic Deep Water, which plays a...
-
Magma source and tectonic setting of the Dunde granite in the Western Tianshan: constraints from geochronology, geochemistry, and Sr–Nd–Hf isotopes
The Dunde iron-zinc polymetallic deposit is one of large iron deposits occurred in the Awulale Metallogenetic Belt, Western Tianshan (NW-China). This...
-
Continental weathering as the source of iron in Jurassic iron oolites from Switzerland
Iron is extremely insoluble in oxic seawater. The lack of a large aqueous reservoir means that sediments rich in authigenic iron are rare in the...
-
Genesis and timing of Mo mineralization in the Mada Ring Complex, north-central Nigeria: insights from whole-rock geochemistry, Nd-Sr isotopes, zircon U-Pb-Hf isotopes, and molybdenite Re-Os systematics
The genesis and timing of molybdenum (Mo) mineralization in the Mada Ring Complex, north-central Nigeria, have been constrained using a combination...
-
Strontium and Neodymium Isotopes
The chapter presents data on Rb–Sr and Sm–Nd TIMS analysis of pyroxenes, plagioclases, gross samples of igneous rocks and sulphide ores. In most...
-
Late Miocene onset of the modern Antarctic Circumpolar Current
The Antarctic Circumpolar Current plays a pivotal role in global climate through its strong influence on the global overturning circulation, ocean...
-
Geochemistry of Cold Hydrocarbon Seeps: An Overview
A fundamental geochemical process operating at methane seeps is the anaerobic oxidation of methane (AOM) by which methane is oxidized and sulfate is...
-
Mantle versus crustal contributions in crustal-scale magmatic systems (Sesia Magmatic System, northern Italy) from coupling Hf isotopes and numerical modelling
The growth and evolution of crustal-scale magmatic systems play a key role in the generation of the continental crust, the largest eruptions on...
-
Potassium isotopic signatures of modern offshore detrital sediments from different climatic regimes and the implications
Potassium isotopes are a novel tracer for continental weathering. Previous K isotope studies on chemical weathering generally targeted weathering...
-
Changes in Indian Summer Monsoon Using Neodymium (Nd) Isotopes in the Andaman Sea During the Last 24,000 years
Dramatic changes from a cold and dry last glacial to a warm and wet Holocene period intensified the Indian summer monsoon (ISM), resulting in...
