Journal Title
Title of Journal: Int J Earth Sci Geol Rundsch
|
Abbravation: International Journal of Earth Sciences
|
Publisher
Springer-Verlag
|
|
|
|
Authors: Feng Guo Weiming Fan Chaowen Li Xiaofen Gao Laicheng Miao
Publish Date: 2008/08/30
Volume: 98, Issue: 6, Pages: 1395-1411
Abstract
An early Cretaceous 135 ± 2 Ma felsic volcanic suite of dacite and rhyolite from Huolinhe NE China is characterized by large ion lithophile element and light REE enrichment and high field strength element HFSE eg Nb and Ta and Ti–P depletion and bulk silicate earthlike Sr 87Sr/86Sri = 070409–070481 quite radiogenic Nd ε Ndt = +398 to +588 Pb eg 206Pb/204Pbi = 1846–1855 and Hf ε Hft ~+92 isotope compositions Compared with contemporaneous mafic rocks in the region these felsic rocks have even higher Nd and Hf isotopic ratios precluding an origin through differentiation of coeval mantlederived magmas Isotope calculation results suggest that these magmas were derived from a preexistent mixture composed of mainly juvenile crust 70–80 and a subordinate recycled crustal component 20–30 having highly radiogenic Sr and Pb and unradiogenic Nd and Hf About 25–30 melting of such a mixed source produced the primary dacitic magma The rhyolites which have relatively low MgO FeO Al2O3 CaO TiO2 P2O5 Na2O Ba Sr REE HFSE and Y were differentiates of the dacites after removal of a fractional assemblage of hornblende + plagioclase + Kfeldspar + apatite + zircon Considering the prolonged events from 262 to 130 Ma that produced such highly positive ε Nd felsic igneous rocks in the region we prefer a preMesozoic crustal growth model related to arc accretion associated with the PaleoAsian Ocean subductionThe authors would like to thank Profs XH Zhou FY Wu XL Xiong and HR Smithies for providing valuable suggestions on an earlier version of the manuscript Constructive reviews by Simon Wilde and an anonymous reviewer greatly improve the manuscript Thanks are also due to Mr L Qi Dr Liang and Dr JH Yang for their help in trace element ICPMS Sr–Nd and zircon Hf isotope analyses respectively Prof DY Liu is thanked for help with the SHRIMP zircon U–Pb dating
Keywords:
.
|
Other Papers In This Journal:
- Reply to W. Franke on W. Dörr and G. Zulauf elevator tectonics and orogenic collapse of a Tibetan-style plateau in the European Variscides: the role of the Bohemian shear zone
- Estimating displacement along the Brenner Fault and orogen-parallel extension in the Eastern Alps
- Sedimentary development and correlation of Late Quaternary terraces in the Kyrenia Range, northern Cyprus, using a combination of sedimentology and optical luminescence data
- Sedimentary development and correlation of Late Quaternary terraces in the Kyrenia Range, northern Cyprus, using a combination of sedimentology and optical luminescence data
- The strong diachronous Muschelkalk/Keuper facies shift in the Central European Basin: implications from the type-section of the Erfurt Formation (Lower Keuper, Triassic) and basin-wide correlations
- Cenozoic tectonic evolution in the Central Andes in northern Chile and west central Bolivia: implications for paleogeographic, magmatic and mountain building evolution
- Abundances and isotopic compositions of rhenium and osmium in pyrite samples from the Huaibei coalfield, Anhui, China
- Sediment instability related to fluid venting in Miocene authigenic carbonate deposits of the northern Apennines (Italy)
- Stratigraphic and regional distribution of fractures in Barremian–Aptian carbonate rocks of Eastern Oman: outcrop data and their extrapolation to Interior Oman hydrocarbon reservoirs
- Evidence for pre-orogenic, Early Devonian rifting in the Variscan belt: stratigraphy and structure of the Palaeozoic cover of the Mauges Unit (Upper Allochthon, Armorican massif, France)
- Detrital blue amphiboles from the western Othrys Mountain and their relationship to the blueschist terrains of the Hellenides (Greece)
- Formation of intra-arc volcanosedimentary basins in the western flank of the central Peruvian Andes during Late Cretaceous oblique subduction: field evidence and constraints from U–Pb ages and Hf isotopes
- Precambrian crustal contribution to the Variscan accretionary prism of the Kaczawa Mountains (Sudetes, SW Poland): evidence from SHRIMP dating of detrital zircons
- Early Cretaceous highly positive ε Nd felsic volcanic rocks from the Hinggan Mountains, NE China: origin and implications for Phanerozoic crustal growth
- Mineralogy, geochemistry, and evolution of the Mivehrood skarn and the associated pluton, northwest Iran
- Travertine deposition and faulting: the fault-related travertine fissure-ridge at Terme S. Giovanni, Rapolano Terme (Italy)
- New terrestrial heat flow map of Europe after regional paleoclimatic correction application
- Neoproterozoic to Lower Palaeozoic successions of the Tandilia System in Argentina: implication for the palaeotectonic framework of southwest Gondwana
- Sedimentary aspects and paleoenvironmental evolution of a rift basin: Salta Group (Cretaceous–Paleogene), northwestern Argentina
- Integrated 3D density modelling and segmentation of the Dead Sea Transform
- Structural evolution of the Sarandí del Yí Shear Zone, Uruguay: kinematics, deformation conditions and tectonic significance
- Salinization problems in the NEGB: results from thermohaline simulations
- Morphotectonic and petrological variations along the southern Central Indian Ridge
- Kinematics and shear heat pattern of ductile simple shear zones with ‘slip boundary condition’
- Cryogenic powderization of Triassic dolostones in the Buda Hills, Hungary
- Seismic basement in Poland
- Paleoenvironmental conditions and strontium isotope stratigraphy in the Paleogene Gafsa Basin (Tunisia) deduced from geochemical analyses of phosphatic fossils
- Triassic emplacement age of the Kalkfeld complex, NW Namibia: implications for carbonatite magmatism and its relationship to the Tristan Plume
- Contrasting red bed diagenesis: the southern and northern margin of the Central European Basin
- Upper crustal emplacement and deformation of granitoids inside the Uppermost Unit of the Cretan nappe stack: constraints from U–Pb zircon dating, microfabrics and paleostress analyses
- Cathodoluminescence, fluid inclusion and stable C–O isotope study of tectonic breccias from thrusting plane of a thin-skinned calcareous nappe
- Mineralogy and mineral chemistry of detrital heavy minerals from the Rhine River in Germany as evidence to their provenance, sedimentary and depositional history: focus on platinum-group minerals and remarks on cassiterite, columbite-group minerals and uraninite
- Alpine metamorphic evolution and cooling history of the Veporic basement in northern Hungary: new petrological and geochronological constraints
- Sedimentary evolution of Lake Van (Eastern Turkey) reconstructed from high-resolution seismic investigations
- Alfred Bentz – Erdölgeologe in schwieriger Zeit, 1938–1947
- Complete recycling of a magmatic arc: evidence from chemical and isotopic composition of Quaternary trench sediments in Chile (36°–40°S)
|