Late Carboniferous crustal uplift of the Tarim plate and its constraints on the evolution of the Early Permian Tarim Large Igneous Province

Li, Dongxu; Yang, Shufeng; Chen, Hanlin; Cheng, Xiaogan; Li, Kang; Jin, Xiaofeng; Li, Zilong; Li, Yinqi; Zou, Siyuan

doi:10.1016/j.lithos.2014.05.023

Cited by 43 publications

(36 citation statements)

References 56 publications

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“…Similarly, several studies suggest geological evidence of a rapid (~3 Ma) crustal doming prior to the eruption of basalts (e.g. : Deng et al, 2014;He et al, 2003;Li et al, 2014;Zhang et al, 2016).…”

Section: Implications For the Tectonic Development Of The Present-daymentioning

confidence: 94%

The preserved plume of the Caribbean Large Igneous Plateau revealed by 3D data-integrative models

Gómez-García¹,

Breton²,

Scheck‐Wenderoth³

et al. 2020

Preprint

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Abstract. Remnants of the Caribbean Large Igneous Plateau (CLIP) are found as thicker than normal oceanic crust in the Caribbean Sea, that formed during rapid pulses of magmatic activity at ~ 91–88 Ma and ~ 76 Ma. Strong geochemical evidence supports the hypothesis that the CLIP formed due to melting of the plume head of the Galápagos hotspot, which interacted with the Farallon (Proto-Caribbean) plate in the east Pacific. Considering the plate tectonics theory, it is expected that the lithospheric portion of the plume-related material migrated within the Proto-Caribbean plate, in a north–north-eastward direction, developing the present-day Caribbean plate. In this research, we used 3D lithospheric-scale, data-integrative models of the current Caribbean plate setting to reveal, for the first time, the presence of positive density anomalies in the uppermost lithospheric mantle. These models are based on the integration of up-to-date geophysical datasets, from the Earth’s surface down to 200 km depth, which are validated using high-resolution free-air gravity measurements. Based on the gravity residuals (modelled minus observed gravity), we derive density heterogeneities both in the crystalline crust and the uppermost oceanic mantle (

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Section: Implications For the Tectonic Development Of The Present-daymentioning

confidence: 94%

The preserved plume of the Caribbean Large Igneous Plateau revealed by 3D data-integrative models

Gómez-García¹,

Breton²,

Scheck‐Wenderoth³

et al. 2020

Preprint

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show abstract

“…The magmas erupt to the surface over a few million years to form a large igneous province (LIP) (Bryan & Ernst, 2008; Campbell & Griffiths, 1990; Coffin & Eldholm, 1994). LIP events have broad effects on the surface depositional facies, mass extinctions, Illawara geomagnetic reversal, mineral resources, and continental breakups (Saunders et al, 2007; Isozaki, 2009; Sobolev et al, 2011; Li, Yang et al, 2014). Two kinds of possible mechanisms have been proposed by geologists to explain the formation of different LIPs.…”

Section: Introductionmentioning

confidence: 99%

Tarim Large Igneous Province Caused by a Wide and Wet Mantle Plume

Líu¹,

Leng²

2020

JGR Solid Earth

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Large igneous provinces (LIPs) can form by interactions between a hot mantle plume and the lithosphere. The Tarim LIP between ~300 and 280 Ma, located in Northwest China, has been investigated by geochemistry and sedimentology studies. However, the factors controlling Tarim LIP formation and the ancient Tarim plume characteristics remain unclear. Here, a series of 3‐D geodynamic models are combined with geological observations to constrain the Tarim LIP evolution and the features of the related Tarim plume. Our results show that (1) an ancient plume produced abundant melts attributed to decompression melting, excess temperature, high water contents, and slow plate motion velocities to form the banded Tarim LIP. (2) The simulated pre‐eruption topography coincides with the stratigraphic records from the late Carboniferous to early Permian. Specifically, the swell area of pre‐eruption topography is sensitive only to the plume radius and enables us to constrain the ancient mantle plume size well. (3) Based on the volcanic activity and pre‐eruption topography, we infer that the ancient Tarim plume had a very large radius of ~200 km, a high excess temperature of ~250 K, and a high water content of ~5 wt.%. (4) Our parameter tests and global plate reconstruction results show that high water contents and slow plate motion velocities facilitate continental flood basalts to form with thick lithosphere. Our geodynamic modeling not only provides new constraints for the Tarim LIP evolution but also first quantificationally demonstrates that water in the mantle plays a key role in continental flood basalt formation.

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“…In the thickness histogram ( The maximum vertical uplift before eruption of the Tarim flood basalt across a distance of 300 km has been estimated to be 887 m [35]. The dimension of the TZ-47 study area is 20-30 km, and the slope fluctuation can be ~60 -90 m if the maximum vertical uplift is applied to this area, although the sloping in this local area seems to be less than one third of the maximum uplift sloping.…”

Section: Pre-deformation Thickness Of the Host Stratamentioning

confidence: 93%

Forced Fold Amplitude and Sill Thickness Constrained by Wireline and 3-D Seismic Data Suggest an Elastic Magma-Induced Deformation in Tarim Basin, NW China

Tian¹,

Li²,

Wang³

2020

Preprint

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Disparities between fold amplitude (A) and intrusion thickness (Hsill) are critical in identifying elastic or inelastic deformation in a forced fold. However, accurate measurement of these two parameters is challenging because of the limit in separability and detectability for the seismic data. In the TZ-47 exploring area from the Tarim Basin, Northwest China, we combined wireline data and 3-D seismic data, to accurately constrain the fold amplitude and total thickness of sills that inducing the roof uplift. The measurement results show that the forced fold amplitude is 155 m and the total sill thickness is 148.4 m. When using a magma density of 2.7 g/cm3, and solid rock density of 3 g/cm3, the molten magma thickness at the time of intrusion would be 153.8 m, which is almost no difference from the forced fold amplitude. Therefore, the TZ-47 fold is a pure elastic forced fold induced by emplacement of multiple sills. Measurement solely based on seismic data may not be able to detect some thin interlayers and may result in large errors.

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Late Carboniferous crustal uplift of the Tarim plate and its constraints on the evolution of the Early Permian Tarim Large Igneous Province

Cited by 43 publications

References 56 publications

The preserved plume of the Caribbean Large Igneous Plateau revealed by 3D data-integrative models

The preserved plume of the Caribbean Large Igneous Plateau revealed by 3D data-integrative models

Tarim Large Igneous Province Caused by a Wide and Wet Mantle Plume

Forced Fold Amplitude and Sill Thickness Constrained by Wireline and 3-D Seismic Data Suggest an Elastic Magma-Induced Deformation in Tarim Basin, NW China

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