Middle Miocene reorganization of deformation along the northeastern Tibetan Plateau

Lease, Richard O.; Burbank, Douglas W.; Clark, Marin K.; Farley, K. A.; Zheng, Dewen; Zhang, Zhuqi

doi:10.1130/g31356.1

Cited by 228 publications

(207 citation statements)

References 21 publications

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“…Brown and blue lines denote the westerly jet and East Asian winter monsoon, respectively. Red dots indicate late Miocene tectonic uplift in North Qilian , Qinghai Nanshan , Guide Basin (Lease et al, 2007), Jishi Shan (Lease et al, 2011), Linxia Basin (Fang et al, 2003), the Liupan Mountains (Zheng et al, 2006;Wang et al, 2011), the Altun Mountains including Dangjin Shan (Wan et al, 2001) and Danghe Nanshan (Wang et al, 2003a,b), the Gobi Altyn Mountains (Jolivet et al, 2001), the western Kunlun Mountains (Wang et al, 2003a,b), the South Tianshan Mountains including Yaha (Charreau et al, 2006) and Kuche (Huang et al, 2006), and the Gobi Altai Mountains (Jolivet et al, 2007). (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)…”

Section: Resultsmentioning

confidence: 99%

“…1, red dots). For example, the uplift of the western Kunlun Mountains is recorded at Pulu from 9 to 4.8 Ma (Wang et al, 2003a); the uplift of the south Tianshan Mountains is recorded at Yaha (Charreau et al, 2006) and Kuche (Huang et al, 2006) sections from 11 to 7 Ma; the uplift of the Gobi Altai Mountains is dated to 5 ± 3 Ma (Jolivet et al, 2007); the uplift of the Altun Mountains is recorded at Dangjin Shan (Wan et al, 2001), Danghe Nanshan (Wang et al, 2003b) and Altyn Shan (Jolivet et al, 2001) at about 10 Ma; and the uplift of the northeastern Tibetan Plateau was recorded at North Qilian , Qinghai Nanshan , the Guide Basin (Lease et al, 2007), Jishi Shan (Lease et al, 2011), the Linxia Basin (Fang et al, 2003) and the Liupan Mountains (Zheng et al, 2006;Wang et al, 2011) at about 8-10 Ma. These tectonic events could have caused a shift in aeolian dust provenance, either directly by producing more detrital material and/or indirectly by intensifying the aridification of inland Asia and the atmospheric circulation.…”

Section: Linkage Of Provenance Shift To Tectonic and Climatic Factorsmentioning

confidence: 98%

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Provenance fluctuations of aeolian deposits on the Chinese Loess Plateau since the Miocene

Sun

Tada

et al. 2015

Aeolian Research

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Section: Resultsmentioning

confidence: 99%

Section: Linkage Of Provenance Shift To Tectonic and Climatic Factorsmentioning

confidence: 98%

Provenance fluctuations of aeolian deposits on the Chinese Loess Plateau since the Miocene

Sun

Tada

et al. 2015

Aeolian Research

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“…Accelerated growth of the WNW-trending Laji Shan to the west ( Fig. 1) commenced at 22 Ma (Lease et al, 2011). Together with the Qilian orogenic belt, these WNW-trending fault zones accommodated NNEdirected plate convergence.…”

Section: Tectonic Settingsmentioning

confidence: 95%

“…Together with the Qilian orogenic belt, these WNW-trending fault zones accommodated NNEdirected plate convergence. A directional shift in plateau growth from NNE to ENE began around ∼15 Ma (Lease et al, 2011). This tectonic reorganization initiated the Jishi Shan at ∼13 Ma (Lease et al, 2011).…”

Section: Tectonic Settingsmentioning

confidence: 96%

Lithospheric architecture and deformation of NE Tibet: New insights on the interplay of regional tectonic processes

Guo

Gao

et al. 2016

Earth and Planetary Science Letters

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Editor: P. ShearerKeywords: deep seismic reflection image residual gravity NE Tibet lithospheric architecture deformation pattern GPS measurements indicate rapid lateral extrusion of the NE Tibetan Plateau, which causes active NEdirected crustal shortening and has initiated oblique shearing along the margins of NE Tibet. However, the Tibetan highlands terminate around 103 • E longitude and topographic relief disappears to the northeast. The exact reasons for this drop in elevation remain obscure due to widespread Tertiary sediments and Quaternary loess, which obscure details of the lithospheric structure. This study describes a new 310 kmlong deep seismic reflection line striking NE-SW across the interior of NE Tibet. Integrating its data with a previously described 165 km-long deep seismic profile of the Tibet-Ordos transition zone together, these datasets provide a complete picture of the crustal architecture of the north-easternmost Tibetan Plateau. Gravity anomaly and previous geological evidence also help constrain complex deformation pattern in the region. Interpretations of these patterns indicate the importance of the large-scale sinistral Haiyuan fault zone and inherited vertical variation in mechanical properties of the lithosphere in the overall tectonic evolution of the NE Tibetan Plateau. The overall crustal architecture obtained in this study provides spatial context for the neotectonic evolution of NE Tibet and helps constrain the interplay of geologic and geodynamic processes affecting NE Tibet and adjacent regions.

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“…Comparison of our plate and deformation reconstructions with seismic tomography suggests that this latter collision was followed by slab break-off at approximately 15-10 Ma and horizontal underthrusting of India below Tibet thereafter. The onset of this last phase of India-Asia collision is contemporaneous with a period of outward growth and extension of the Tibetan plateau (10,12,48).…”

Section: Subduction History and Mantle Tomographymentioning

confidence: 99%

Greater India Basin hypothesis and a two-stage Cenozoic collision between India and Asia

Hinsbergen

Lippert

Dupont‐Nivet

et al. 2012

Proc. Natl. Acad. Sci. U.S.A.

576

526

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Cenozoic convergence between the Indian and Asian plates produced the archetypical continental collision zone comprising the Himalaya mountain belt and the Tibetan Plateau. How and where India-Asia convergence was accommodated after collision at or before 52 Ma remains a long-standing controversy. Since 52 Ma, the two plates have converged up to 3,600 AE 35 km, yet the upper crustal shortening documented from the geological record of Asia and the Himalaya is up to approximately 2,350-km less. Here we show that the discrepancy between the convergence and the shortening can be explained by subduction of highly extended continental and oceanic Indian lithosphere within the Himalaya between approximately 50 and 25 Ma. Paleomagnetic data show that this extended continental and oceanic "Greater India" promontory resulted from 2,675 AE 700 km of North-South extension between 120 and 70 Ma, accommodated between the Tibetan Himalaya and cratonic India. We suggest that the approximately 50 Ma "India"-Asia collision was a collision of a Tibetan-Himalayan microcontinent with Asia, followed by subduction of the largely oceanic Greater India Basin along a subduction zone at the location of the Greater Himalaya. The "hard" India-Asia collision with thicker and contiguous Indian continental lithosphere occurred around 25-20 Ma. This hard collision is coincident with far-field deformation in central Asia and rapid exhumation of Greater Himalaya crystalline rocks, and may be linked to intensification of the Asian monsoon system. This two-stage collision between India and Asia is also reflected in the deep mantle remnants of subduction imaged with seismic tomography.continent-continent collision | mantle tomography | plate reconstructions | Cretaceous T he present geological boundary between India and Asia is marked by the Indus-Yarlung suture zone, which contains deformed remnants of the ancient Neotethys Ocean (1, 2) (Fig. 1). North of the Indus-Yarlung suture is the southernmost continental fragment of Asia, the Lhasa block. South of the suture lies the Himalaya, composed of (meta)sedimentary rocks that were scraped off now-subducted Indian continental crust and mantle lithosphere and thrust southward over India during collision. The highest structural unit of the Himalaya is overlain by fragments of oceanic lithosphere (ophiolites).We apply the common term Greater India to refer to the part of the Indian plate that has been subducted underneath Tibet since the onset of Cenozoic continental collision. A 52 Ma minimum age of collision between northernmost Greater India and the Lhasa block is constrained by 52 Ma sedimentary rocks in the northern, "Tibetan" Himalaya that include detritus from the Lhasa block (3). This collision age is consistent with independent paleomagnetic evidence for overlapping paleolatitudes for the Tibetan Himalaya and the Lhasa blocks at 48.6 AE 6.2 Ma ( Fig. 2; SI Text) as well as with an abrupt decrease in India-Asia convergence rates beginning at 55-50 Ma, as demonstrated by India-Asia plate circuits ...

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Middle Miocene reorganization of deformation along the northeastern Tibetan Plateau

Cited by 228 publications

References 21 publications

Provenance fluctuations of aeolian deposits on the Chinese Loess Plateau since the Miocene

Provenance fluctuations of aeolian deposits on the Chinese Loess Plateau since the Miocene

Lithospheric architecture and deformation of NE Tibet: New insights on the interplay of regional tectonic processes

Greater India Basin hypothesis and a two-stage Cenozoic collision between India and Asia

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