The Archean Dongwanzi Ophiolite Complex, North China Craton: 2.505-Billion-Year-Old Oceanic Crust and Mantle

Kusky, Timothy M.; Li, Jianghai; Tucker, Robert D.

doi:10.1126/science.1059426

Cited by 290 publications

(97 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The Mauranipur supracrustal rocks consist of low K tholeiitic basalt, basaltic komatiite, volcaniclastic sediment, and BIF, and are similar to those reported from various Archean greenstone belts worldwide (e.g., Paris, 1987;Kusky and Polat, 1999;Kusky et al, 2001;Smithies, 2002;Polat et al, 2003;Feri and Jensen, 2003;Smithies et al, 2004Smithies et al, , 2005Manikyamba et al, 2005).…”

Section: Tectonic Setting Inferred For Basaltic Komatiitesupporting

confidence: 78%

“…The lithologies encountered comprised basaltic to basaltic andesitic pillow and massive lava, serpentinized ultramafic rock, volcaniclastic sediment, tuff, and BIF similar to ophiolite reported from Archean cratons worldwide (e.g., Paris, 1987;Kusky and Polat, 1999;Cousens, 2000;Kusky et al, 2001;Smithies, 2002;Feri and Jensen, 2003; Naqvi and Rogers, 1987). (B) Simplified geological map of the Bundelkhand craton modified after Basu (1986), illustrating prominent boundaries, marginal basins, marked linear features such as giant quartz veins and mafic dikes, and the location of the "Bundelkhand Tectonic Zone".…”

Section: Introductionmentioning

confidence: 83%

See 1 more Smart Citation

Petrology and geochemistry of metamorphosed basaltic pillow lava and basaltic komatiite in the Mauranipur area: subduction related volcanism in the Archean Bundelkhand craton, Central India

Malviya

Arima

Pati

et al. 2006

Journal of Mineralogical and Petrological Sciences

102

View full text Add to dashboard Cite

The occurrence of metamorphosed basaltic pillow lava in close association with serpentinized ultramafic rock, metamorphosed basaltic komatiite, volcaniclastic metasediment, and banded iron formation (BIF) in the Mauranipur area is the first explicit evidence for subduction related submarine volcanism in the Archean Bundelkhand craton, Central India. The Mauranipur pillow lava underwent greenschist to amphibolite facies metamorphism while retaining a geochemical signature of its igneous protolith. The pillow lava and associated massive volcanic rock is subalkalic, low − K tholeiitic basalt to basaltic andesite with SiO 2 = 51.9 − 55.9 wt% and Mg/(Mg + Fe .44, and depicts a nearly flat chondrite normalized HREE pattern with a low MREE/HREE ratio (Gd/Yb) N = 1.24 − 1.58. The basaltic komatiite displays remarkably similar geochemical characteristics to modern boninite. The present study, combined with available geological data, suggests that the supracrustal rocks of the Mauranipur area represent an Archean ophiolite sequence formed in a plate convergent setting.

show abstract

Section: Tectonic Setting Inferred For Basaltic Komatiitesupporting

confidence: 78%

Section: Introductionmentioning

confidence: 83%

Petrology and geochemistry of metamorphosed basaltic pillow lava and basaltic komatiite in the Mauranipur area: subduction related volcanism in the Archean Bundelkhand craton, Central India

Malviya

Arima

Pati

et al. 2006

Journal of Mineralogical and Petrological Sciences

102

View full text Add to dashboard Cite

show abstract

“…They show prominent U-Pb age peaks at 2.4~2.5 Ga and 1.8~1.9 Ga, which are the characteristic of the North China Craton (Fig. 4A) (Wan et al, 2000(Wan et al, , 2006a(Wan et al, , 2006b(Wan et al, , 2010(Wan et al, , 2012bKusky et al, 2001;. The 2.4~2.5 Ga ages are widespread in the North China Craton, which represents the strongest magmatic events in the North China Craton.…”

Section: Provenance Of Floodplain Sedimentsmentioning

confidence: 96%

Growth rate of continental crust in the northeast margin of the North China Craton: Constraints from the U-Pb dating and Lu-Hf isotopes of detrital zircons from the Laoha River

et al. 2013

View full text Add to dashboard Cite

Recently, how to quantitatively estimate the growth rate of continental crust is an enigmatic issue. With the development of ICP-MS technology, the U-Pb dating and Lu-Hf isotopic compositions of detrital zircons from the fluvial sediments can provide an effective and simple approach to constrain the growth rate and evolutionary history of continental crust. In this paper, 189 concordant detrital zircons from the Laoha River have been analyzed for U-Pb ages and Lu-Hf isotopic compositions by excimer LA-MC-ICP-MS. Detrital zircons from samples LH and LH2 show three major age groups, i.e., 2370 Ma~2572 Ma, 1728~2087 Ma, 127~376 Ma and 2374~2598 Ma, 1765~2087 Ma, 119~405 Ma, respectively. They have the common prominent two stage Hf model ages with a peak at ca. 2.7 Ga, which is consistent with the global continental crust. These indicate that the timing of the strongest magmatic events is at ca. 2.5 Ga and 1.8 Ga, and the best estimation age of mantle extraction of the northeast margin of North China Craton is ca. 2.7 Ga. The detrital zircons with U-Pb ages of ~1.8 Ga and ~2.5 Ga have the two stage Hf model ages of ca. 2.7 Ga, whereas ε Hf (t) values are different from those of depleted mantle. These indicate that the majority of continental crust of the northeast margin of North China Craton at time of ~1.8 Ga originated from the reworking of ~2.7 Ga crust. About 5% of the present crustal volume in the northeast margin of North China Craton was formed at 2.9 Ga; whilst ~64% of the present crustal volume in the northeast margin of North China Craton has been formed at 2.5 Ga, which is higher than that of previous studies. It suggests that the continental crust growth in the North China Craton is not uniform, but it is consistent with the episodic growth of global continental crust (60%). Moreover, the majority continental crust of the northeast margin of North China Craton has been formed at 1.8 Ga (84%) as previously interpreted. Finally, we have used formulas to quantitatively calculate the reworking rate and give a suggestion that the time of 2.5 Ga is also the main growth period of continental crust of the North China Craton, and the time of 1.8 Ga is the strongest reworking period of the continental crust in the craton. In addition, the reworking rate began to drop after reactivating in the North China Craton, and the addition of depleted mantle was gradually increased.

show abstract

“…There are two different models to explain time of final amalgamation of NCC. Some researchers believed that the NCC formed by assembling of several micro-continental blocks at ~2.50 Ga [5][6][7][8], whereas others proposed that the final collision of NCC occurred at ~1.85 Ga [9,10]. Conventional, the final amalgamation and cratonization of the NCC was considered to be related to the Lüliang movement at the late Paleoproterozoic (~1.8 Ga) [11], which are characterized by unconformity between the Paleo-Mesoproterozoic sedimentary strata and metamorphosed Archean basement in different regions.…”

Section: Geological Setting and Sample Collectionmentioning

confidence: 99%

“…The Western Block continually subducted eastward from the end of the Archean. Finally, the Western and Eastern Blocks collided along the Trans-North China Orogen to form the coherent basement of the NCC at ~1.85 Ga. Kusky et al [7,8] also provided a model to divide the NCC into the Eastern Block, Western Block, and Central Orogenic Belt which underwent arc/continent collision at 2.5 Ga. Recently, Faure and Trap [64,65] proposed the Fuping Block lies between the Eastern and Western Blocks of the NCC.…”

Section: Early Precambrian Tectonic Evolution Of the Nccmentioning

confidence: 99%

Early Precambrian tectonothermal events of the North China Craton: Constraints from in situ detrital zircon U-Pb, Hf and O isotopic compositions in Tietonggou Formation

et al. 2013

View full text Add to dashboard Cite

Clastic sediments and sedimentary rocks are widely used for understanding the formation and evolution of the continental crust. The Tietonggou Formation outcrops in the Xiaoqinling region at the southern margin of the North China Craton (NCC) and has unconformable contacts with the underlying Taihua Complex and overlying Paleoproterozoic Xiong'er Group. It mainly consists of quartzite and its protoliths are mature terrigenous clastic rocks. On the basis of the ages of the youngest detrital zircons from the quartzites and the ages of the Xiong'er Group, the depositional ages of the protoliths of the Tietonggou Formation were well constrained to 1.91-1.80 Ga. The U-Pb isotopic data of detrital zircons from the Formation show a major age peak at ~2.1 Ga, which is consistent with 2.2-2.0 Ga magmatism in the Trans-North China Orogen of the NCC. Taking into account the texctural and compositional maturity of the Tietonggou Formation quartzite, the ~2.1 Ga lithologic units in the Trans-North China Orogen are interpreted as the major source of the Tietonggou Formation. The majority of these ~2.1 Ga detrital zircons mostly have high δ 18 O values (>6.5‰) and negative ε Hf (t) values (-7.8-0.0), with corresponding Hf model ages significantly older than their crystallization ages, indicating that these zircons formed from the partial melting of ancient continental crust. The majority of the 2.8-2.7 Ga and ~2.5 Ga detrital zircons from the Tietonggou Formation had positive ε Hf (t) values, and mantle-like δ 18 O values, suggesting that the NCC has experienced two stages of significant crustal growth in the Neoarchaean at 2.7 and 2.5 Ga, respectively. The Hf isotopic data of detrital zircons from Paleoproterozoic metasedimentary rocks in the Trans-North China Orogen varied mainly toward the reduction of the radiogenic Hf isotope and gradually show a similar trend of the isotope trajectories of crustal evolution. This reveals that the NCC probably has not developed a long-lived subduction to complete the final assembly of the NCC. Alternatively, these maybe imply that the tectonic setting of the NCC substantially changed at ~2.1 Ga, the reduction of the radiogenic Hf isotope could be attributed to the rollback of the subducting slab. North China Craton, Tietonggou Formation, detrital zircon, Hf isotope, O isotope Citation:Diwu C R, Sun Y, Gao J F, et al. Early Precambrian tectonothermal events of the North China Craton: Constraints from in situ detrital zircon

show abstract

The Archean Dongwanzi Ophiolite Complex, North China Craton: 2.505-Billion-Year-Old Oceanic Crust and Mantle

Cited by 290 publications

References 11 publications

Petrology and geochemistry of metamorphosed basaltic pillow lava and basaltic komatiite in the Mauranipur area: subduction related volcanism in the Archean Bundelkhand craton, Central India

Petrology and geochemistry of metamorphosed basaltic pillow lava and basaltic komatiite in the Mauranipur area: subduction related volcanism in the Archean Bundelkhand craton, Central India

Growth rate of continental crust in the northeast margin of the North China Craton: Constraints from the U-Pb dating and Lu-Hf isotopes of detrital zircons from the Laoha River

Early Precambrian tectonothermal events of the North China Craton: Constraints from in situ detrital zircon U-Pb, Hf and O isotopic compositions in Tietonggou Formation

Contact Info

Product

Resources

About