Detrital and xenocrystic zircon ages from Neoproterozoic to Palaeozoic arc terranes of Mongolia: Significance for the origin of crustal fragments in the Central Asian Orogenic Belt

Rojas‐Agramonte, Yamirka; Demoux, Antoine; Xia, Xiaoping; Wang, W.; Donskaya, T. V.; Liu, D.; Sun, Min

doi:10.1016/j.gr.2010.10.004

Cited by 404 publications

(170 citation statements)

References 103 publications

Supporting

Mentioning

156

Contrasting

Unclassified

Order By: Relevance

“…In the range of studied CAFB segment igneous events of early Neoproterozoic time (900-720 Ma) are quite abundant [Kuzmichev et al, 2005;Kuzmichev, Larionov, 2011;and others]. Detrital zircons of this time interval are also typical for the most of CAFB terrigenous layers [Kozakov et al, 2005;Rojas-Agramonte et al, 2011;Kovach et al, 2013;Reznitsky et al, 2015;and others], while the zircons of late Neoproterozoic age on the present day are found only in metaterrigenous Fig. 2.…”

Section: Geodynamics and Tectonophysics P U B L I S H E D B Y T H E I Nmentioning

confidence: 96%

The Devonian magmatism in the Kropotkin Ridge (East Sayan) and sources of basites: geological, geochemical, and Sr-Nd isotope data

Воронцов

Sandimirov

2010

Russian Geology and Geophysics

View full text Add to dashboard Cite

In the east of the Tuvinian trough within the Kropotkin Ridge, the formation of Devonian volcanic associations was intimately conjugate with rifting on the southwestern framing of the Siberian Platform. The associations include picrite-like basalts, trachybasalts, basaltic trachyandesites, trachyandesites, trachytes, trachyrhyodacites, trachyrhyolites, comendites, and subvolcanic dolerites. The basic and normal-basic rocks are subdivided into two groups by TiO2 contents: high-Ti (TiO2 ∼ 2.2–4.2 wt.%) and medium-Ti (TiO2 ∼ 1.3–2.0 wt.%). Compared with the high-Ti basites, the medium-Ti ones are depleted in K, Rb, REE, Nb, Ta, Th, and U and have features of magmatic series of active continental margins. The high-Ti rocks are similar in composition to within-plate basalts. But in the isotopic compositions of Sr and Nd the above groups of basites are similar and correspond to mantle sources forming enriched within-plate basalts of the OIB type. This combination of within-plate and continent-marginal geochemical features in the basites localized in the same structure-geologic conditions might indicate the formation of rock associations in the rift zone at the rear of active continental paleomargin during the evolution of their common plume source. Its interaction with the suprasubductional lithospheric mantle determined the geochemistry of rocks.

show abstract

Section: Geodynamics and Tectonophysics P U B L I S H E D B Y T H E I Nmentioning

confidence: 96%

The Devonian magmatism in the Kropotkin Ridge (East Sayan) and sources of basites: geological, geochemical, and Sr-Nd isotope data

Воронцов

Sandimirov

2010

Russian Geology and Geophysics

View full text Add to dashboard Cite

show abstract

“…The Tarim Craton as a block rifted from Gondwana was thus widely considered to the origin of some microcontinents within the CAOB. Levashova et al, 2009;Lei et al, 2011;Levashova et al, 2011;Rojas-Agramonte et al, 2011;Shu et al, 2011;Ma et al, 2012a,b;Lei et al, 2013;Ma et al, 2013;Metcalfe, 2013;Liu et al, 2014;Rojas-Agramonte et al, 2014;Zhao et al, 2014;Wang et al, 2014c).…”

Section: Tectonic Affinity Of the Yili Blockmentioning

confidence: 99%

“…In contrast, models that favor the origin of the Siberian Craton have been proposed recently (Berzin and Dobretsov, 1994;Sengör and Natal'in, 1996;Kuzmichev et al, 2001;Turkina et al, 2007;Zhou et al, 2009Zhou et al, , 2010aZhou et al, ,b,c, 2011. More recently, the Tarim Craton was also considered to be a possible origin for these microcontinents (Levashova et al, 2009;Lei et al, 2011;Levashova et al, 2011;Rojas-Agramonte et al, 2011;Shu et al, 2011;Ma et al, 2012a,b;Lei et al, 2013;Ma et al, 2013;Liu et al, 2014;Wang et al, 2014c). These controversies largely result from the Phanerozoic reworking of polyphase orogenesis and magmatism which overprinted and obscured much of the Precambrian geological records.…”

Section: Introductionmentioning

confidence: 99%

Detrital zircons from Neoproterozoic sedimentary rocks in the Yili Block: Constraints on the affinity of microcontinents in the southern Central Asian Orogenic Belt

et al. 2016

View full text Add to dashboard Cite

“…The Central Asian Orogenic Belt (CAOB), also known as Altaids (Sengör et al, 1993), located between the Archean Siberian Craton to the north and the Tarim and North China Cratons to the south, is regarded as one of the largest accretionary and collisional orogen in the world (Xiao et al, 2010;Rojas -Agramonte et al, 2011) (Fig. 1b).…”

Section: Introductionmentioning

confidence: 99%

Carbonic fluid inclusions in amphibolite-facies pelitic schists from Bodonch area, western Mongolian Altai

Zorigtkhuu

Tsunogae

Dash

2012

Journal of Mineralogical and Petrological Sciences

View full text Add to dashboard Cite

We report first fluid inclusion data on amphibolite -facies pelitic schists from Bodonch area of western Mongolian Altai in the Central Asian Orogenic Belt. Three categories of fluid inclusions have been observed in quartz: dominant primary and secondary inclusions, and least dominant pseudosecondary inclusions. The melting temperatures of all the categories of inclusions lie in the narrow range of −57.5 °C to −56.6 °C, close to the triple point of pure CO 2 . Homogenization of fluids occurs into liquid phase at temperature between −33.3 °C to +19.4 °C, which convert into densities in the range of 0.78 g/cm 3 to 1.09 g/cm 3. The estimated CO 2 isochores for primary and pseudosecondary high -density inclusions is broadly consistent with the peak metamorphic condition of the studied area (6.3 -7.3 kbar at 655 °C). The results of this study, together with the primary and pseudosecondary nature of the inclusions, indicate CO 2 was the dominant fluid component during the peak amphibolitefacies metamorphism of the study area. The examined quartz grains are texturally associated with biotite, kyanite and staurolite, which are regarded as high -grade minerals formed during prograde to peak metamorphism. Therefore quartz probably formed by high -grade metamorphism and the primary fluid inclusions trapped in the minerals probably preserve fluids at around peak metamorphism.

show abstract

Detrital and xenocrystic zircon ages from Neoproterozoic to Palaeozoic arc terranes of Mongolia: Significance for the origin of crustal fragments in the Central Asian Orogenic Belt

Cited by 404 publications

References 103 publications

The Devonian magmatism in the Kropotkin Ridge (East Sayan) and sources of basites: geological, geochemical, and Sr-Nd isotope data

The Devonian magmatism in the Kropotkin Ridge (East Sayan) and sources of basites: geological, geochemical, and Sr-Nd isotope data

Detrital zircons from Neoproterozoic sedimentary rocks in the Yili Block: Constraints on the affinity of microcontinents in the southern Central Asian Orogenic Belt

Carbonic fluid inclusions in amphibolite-facies pelitic schists from Bodonch area, western Mongolian Altai

Contact Info

Product

Resources

About