Complex metasomatism of lithospheric mantle by asthenosphere-derived melts: Evidence from peridotite xenoliths in Weichang at the northern margin of the North China Craton

Zou, Dongya; Zhang, Hongfu; Hu, Zhaochu; Santosh, M.

doi:10.1016/j.lithos.2016.08.036

Cited by 18 publications

(5 citation statements)

References 73 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Tang et al, 2008; Y. Xiao et al, 2010; X.‐S. Xu et al, 1998; Ying et al, 2006; Zheng et al, 2001, 2007; Zou et al, 2016). The equilibrium temperature is constrained by the Ca‐in‐Opx method (Brey & Kohler, 1990) at an assumed pressure of 15 kbar, which corresponds to a depth of ∼50–80 km (Figure 3), which is the normal preset pressure for spinel faces xenoliths.…”

Section: Lithosphere Thermal Modelmentioning

confidence: 99%

Lithosphere Mantle Density of the North China Craton

2020

View full text Add to dashboard Cite

We constrain the lithospheric mantle density of the North China Craton (NCC) at both in situ and standard temperature-pressure (STP) conditions from gravity data. The lithosphere-asthenosphere boundary (LAB) depth is constrained by our new thermal model, which is based on a new regional heat flow data set and a recent regional crustal model NCcrust. The new thermal model shows that the thermal lithosphere thickness is <120 km in most of the NCC, except for the northern and southern parts with the maximum depth of 170 km. The gravity calculations reveal a highly heterogeneous density structure of the lithospheric mantle with in situ and STP values of 3.22-3.29 and 3.32-3.40 g/cm 3 , respectively. Thick and reduced-density cratonic-type lithosphere is preserved mostly in the southern NCC. Most of the Eastern Block has a thin (90-140 km) and high-density lithospheric mantle. Most of the Western Block has a high-density lithospheric mantle and a thin (80-110 km) lithosphere typical of Phanerozoic regions, which suggests that the Archean lithosphere is no longer present there. We conclude that in almost the entire NCC the lithosphere has lost its cratonic characteristics by geodynamic processes that include, but are not limited to, the Paleozoic closure of the Paleo-Asian Ocean in the north, the Mesozoic Yangtze Craton flat subduction in the south, the Mesozoic Pacific subduction in the east, the Cenozoic remote response to the Indian-Eurasian collision in the west, and the Cenozoic extensional tectonics (possibly associated with the slab roll-back) in the center.

show abstract

Section: Lithosphere Thermal Modelmentioning

confidence: 99%

Lithosphere Mantle Density of the North China Craton

2020

View full text Add to dashboard Cite

show abstract

“…Such a kind of refertilization changes the geochemical composition and properties (e.g., buoyancy, rheological strength, etc.) of the lower part of the subcontinental lithospheric mantle, resulting in a change in the rheological property of the reworked (Doucet et al, 2012;Gornova et al, 2013;Tang, Zhang, Ying, & Su, 2013 and references therein;Howarth et al, 2014;Lin et al, 2019;Xiao et al, 2013;Yang et al, 2018;Zou et al, 2016). Bold lines labeled with squares, initial melting pressures in GPa; light lines labeled with circles, final melting pressures in GPa; brown shaded area, compositions of residual harzburgite designated as (L + Ol + Opx) after melting of lherzolite (Herzberg, 2004).…”

Section: Reworking Of Subcontinental Lithospheric Mantlementioning

confidence: 99%

Origin, Accretion, and Reworking of Continents

Zhu

Zhao

Xiao

et al. 2021

Reviews of Geophysics

View full text Add to dashboard Cite

Archean continental nuclei likely originated from oceanic plateaus formed by mantle plumes, not from island arcs via oceanic subduction Archean continental nuclei underwent accretion or growth at margins by oceanic subduction, involving juvenile arc formation and accretion Continental reworking occurs ubiquitously, with significant reworking/craton destruction being mainly associated with oceanic subduction Accepted ArticleThis article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. Please cite this article as

show abstract

“…Cenozoic basalts in eastern NCC: Nvshan (Xu et al, 1998), Shanwang (Zheng et al, 1998), Changle (Xiao et al, 2010), Qixia (Fan and Hooper, 1989;Zheng et al, 1998), Penglai (Fan et al, 2000), Pingquan (E and Zhao, 1987), Kuandian (Wu et al, 2006), Longgang, Huinan (Xu et al, 2003), Yitong (Xu et al, 1996). Cenozoic basalts in central and western NCC: Hebi (Zheng et al, 2001), Fanshi (Tang et al, 2008), Datong & Yangyuan (Xu et al, 2004b), Hannuoba (Liu et al, 1992), Weichang (Zou et al, 2016), Jining (Zhang and Han, 2006;Zhao et al, 2007), Siziwangqi (Wu et al, 2017). cratons) (Figure 2) (Tang et al, 2013b).…”

Section: Paleozoic Lithospheric Mantlementioning

confidence: 99%

Nature and secular evolution of the lithospheric mantle beneath the North China Craton

Tang

Ying

Zhao

et al. 2021

Sci. China Earth Sci.

View full text Add to dashboard Cite

The Archean mantle lithosphere beneath the North China Craton (NCC) was transformed in the Mesozoic, leading to the craton destruction. Despite the significant breakthroughs in the craton studies, lithospheric transformation mechanisms are yet to be fully understood. Compositional variations of mantle-derived rocks and xenoliths provide insights into the nature of the mantle lithosphere before and after the craton destruction. The Paleozoic lithosphere of the NCC is ~200 km thick. It has a refractory mantle with an evolved isotopic signature. The Mesozoic mantle lithosphere was relatively fertile and highly heterogeneous. In the Cenozoic, the lithosphere in the eastern NCC is about 60-80 km thick. It has an oceanic-type mantle that is fertile in composition and depleted in the Sr-Nd isotopic signature. The Central Zone lithosphere is >100 km thick and has a double-layer mantle with an old upper layer and a new lower layer. The Western Block has a lithosphere of ~200 km thick. The lithospheric mantle beneath the southern and northern margins and eastern part of the NCC has been transformed significantly by peridotite-melt reactions due to the multiple subductions of adjacent plates since the Paleozoic. Paleo-Pacific subduction and the associated dynamic processes significantly alter the lithosphere based on the distribution of craton destruction. The involved mechanisms include mechanical intrusion of subduction plates, melt/fluid erosion, and local delamination. The lithospheric thinning of ~120 km is relevant to the continental extension caused by subduction plate rollback and trench retreat.

show abstract

Complex metasomatism of lithospheric mantle by asthenosphere-derived melts: Evidence from peridotite xenoliths in Weichang at the northern margin of the North China Craton

Cited by 18 publications

References 73 publications

Lithosphere Mantle Density of the North China Craton

Lithosphere Mantle Density of the North China Craton

Origin, Accretion, and Reworking of Continents

Nature and secular evolution of the lithospheric mantle beneath the North China Craton

Contact Info

Product

Resources

About