Search
Search Results
-
Lower cretaceous missing volcanic arc. A migrating arc, central Patagonian cordillera, Chile: Detrital zircon U–Pb geochronology
New U–Pb detrital zircon ages from seven samples from the Lower Cretaceous Katterfeld and Apeleg formations and Divisadero Group of Central Patagonia...
-
Late Cambrian (~490 Ma) Arc Volcanic Rocks of the North Tianshan of Kyrgyzstan: Age Constraints from U–Pb Zircon Dating
AbstractIn the present contribution, we aim to better constrain the age of the oldest arc-related volcanic units in the North Tianshan of Kyrgyzstan...
-
Generation of intermediate and felsic magmas of the Iwanoyama–Iyuzan (Ioyama) volcanic chain in the Higashi–Izu Monogenetic Volcano Field, northern Izu–Bonin volcanic arc, Japan
The Higashi–Izu Monogenetic Volcano Field (HIMVF) in the northern Izu–Bonin volcanic arc, Japan consists mainly of mafic with minor intermediate and...
-
Application of machine-learning algorithms for tephrochronology: a case study of Plio-Quaternary volcanic fields in the South Aegean Active Volcanic Arc
We performed several machine-learning algorithms on a geochemical dataset including whole-rock (n = 1656) and glass (n = 1092) compositions of lavas...
-
Magmatic evolution and metal systematics of back-arc volcanic rocks of north–east Japan and implications for deposition of massive sulphide Kuroko ores
The Hokuroku region of north-eastern Japan is endowed with important volcanic-hosted massive sulphide Zn–Pb–Cu deposits, which are considered the...
-
The Quaternary volcanogenic landscape and volcaniclastic sediments of the Netherlands Antilles: markers for an in-active volcanic arc
The Quaternary volcanogenic landscape and the volcanogenic sediments of the Netherlands Antilles (NA) (Aruba, Bonaire, Curaçao) reflect the most...
-
On the unusual presence of a Quaternary peralkaline volcanic center, rear-arc region of the Trans-Mexican Volcanic Belt eastern sector: geochemical and isotopic characterization of the Las Navajas–Hidalgo stratovolcano
The Quaternary Las Navajas–Hidalgo stratovolcano was constructed, between ~ 2.58 and ~ 2.2 Ma, by peralkaline rhyolites (comendites), with scarce...
-
The compositional diversity and temporal evolution of an active andesitic arc stratovolcano: Tongariro, Taupō Volcanic Zone, New Zealand
New geochemical data, including Sr–Nd–Pb isotopes for whole-rock and groundmass samples, are reported for edifice-forming eruptives at Tongariro...
-
Volcanic Massive Sulfide Complexes of the Magnitogorsk Paleoisland Arc Megazone in the Southern Urals: Models of Ore-Magmatic System and Geodynamic Reconstructions
Plate-tectonic paleogeodynamic setting of volcanic massive sulfide-bearing complexes of the Magnitogorsk island-arc megazone was reonstructed based...
-
Carboniferous back-arc extension in the southern Yili-Central Tianshan Block and its significance to the formation of the Kazakhstan Orocline: insights from the Wusun Mountain volcanic belt
In Central Asia, the Carboniferous is a crucial period in the formation of the Tianshan Belt and associated bending of the Kazakhstan tectonic...
-
The Raikoke Volcanic Massif, Kuril Island Arc
AbstractThis study is concerned with the Raikoke volcanic massif, part land, part undersea, situated in the northern Central Kuriles. It consists of...
-
Early magmatic history of the IBM arc inferred from volcanic minerals and melt inclusions from early–late Oligocene DSDP Site 296: a mineral–melt partition approach
The magmatic history of the early Izu-Bonin-Mariana (IBM) arc forms a gap between a growing understanding of Eocene subduction and IBM arc initiation...
-
Geosite Recognition Based on Qualitative-Quantitative Assessment in the Light of Core Geological Features of a Mio-Pliocene Volcanic Arc Setting of the Coromandel Peninsula, New Zealand
The far north part of Coromandel Peninsula can be considered a good place for geoeducation and geotourism, which is justified by the remnants of...
-
Geochronology and geochemistry of Early Cretaceous bimodal volcanic rocks from Erguna Massif, NE China: evidence for the back-arc extension of the Mongol–Okhotsk orogenic belt
The Manzhouli–**n Barag Right Banner area, located in the southwestern Erguna Massif, is characterized by the distribution of a large volume of...
-
The Ediacaran Rock Units
This chapter sheds more light on the description of the Ediacaran rocks in Egypt. Three rock units are introduced in this chapter; two of them (the...
-
Geochemical Features of Bellara Trap Volcanic Rocks of Chitradurga Greenstone Belt, Western Dharwar Craton, India: Insights into MORB-BABB Association from a Neoarchean Back-Arc Basin
This study presents a comprehensive account of the petrogenetic and geodynamic evolution of the Bellara Trap volcanic rocks from the Ingaldhal...
-
Crustal Forensics at Pūtauaki (Mt. Edgecumbe), New Zealand reveal the influence of deep crustal arc processes on magma evolution in the Taupo Volcanic Zone
Our understanding of magmatism in the New Zealand North Island subduction system is limited by sparse knowledge of the structure and composition of...
-
Volcanic activity and gas emissions along the South Sandwich Arc
The South Sandwich Volcanic Arc is one of the most remote and enigmatic arcs on Earth. Sporadic observations from rare cloud-free satellite...
-
Early Cretaceous arc-related volcanic rocks in the northern Great **ng’an Range, NE China: records of Paleo-Pacific ocean subduction
There are widespread Late Mesozoic volcanic rocks in the Great **ng’an Range, Northeast China. However, the precise age data and tectonic evolution...
-
The origin of the Late Quaternary back-arc volcanic rocks from Kamchatka: evidence from the compositions of olivine and olivine-hosted melt inclusions
A quarter of Kamchatka’s Late Quaternary (<50 ka) volcanic deposits is erupted in the back-arc along the Sredinny Range (SR). The eruptions are...
