Dating Strike‐Slip Ductile Shear Through Combined Zircon‐, Titanite‐ and Apatite U–Pb Geochronology Along the Southern Tan‐Lu Fault Zone, East China

Qiu, Erkang; Zhang, Yueqiao; Larson, Kyle P.; Li, Bingxi

doi:10.1029/2022tc007734

Cited by 2 publications

(1 citation statement)

References 176 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Shear zones are typically known as tabular high-strain zones that play a major role in accommodating tectonic strain, displacement and fluid migration in the lithosphere [1][2][3][4][5][6]. Such zones are important structures in orogeny and can occur at a variety of scales, which significantly influence the geometry and evolution of orogenic belts [4,[7][8][9]. Mylonites are characteristic rock types of shear zones at middle to lower crustal levels, and they generally develop a range of ductile structures and fabrics, providing valuable information on the kinematic and tectonothermal processes during orogeny [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Timing and Tectonic Implications of the Development of the Orosirian Qianlishan Ductile Shear Zones in the Khondalite Belt, North China Craton

Qiao,

Liu,

Dai

2024

Minerals

View full text Add to dashboard Cite

Orogen-parallel ductile shear zones are conspicuous structures in the Khondalite Belt, but the timing of shearing remains poorly understood. Here, we present field-based structural and zircon U-Pb geochronological studies on the newly discovered Qianlishan ductile shear zones (QDSZ) in the Khondalite Belt. Our results show that the nearly E-W-trending QDSZ are characterized by steeply S(SW)-dipping mylonitic foliations and mainly display a top-to-N(NE) sense of shearing. Two pre-kinematic intrusions yielded zircon crystallization ages of 2055 ± 17 Ma and 1947 ± 9 Ma, providing the maximum age limit for the QDSZ. Additionally, zircon overgrowth rims from three high-temperature mylonites gave metamorphic ages of 1902 ± 8 Ma, 1902 ± 26 Ma and 1884 ± 12 Ma, interpreted to record the timing of development of the QDSZ. Integrated with previous studies, we propose that the Qianlishan Complex suffered three phases of Orosirian deformation (D1–D3), of which the D3 deformation led to the development of the QDSZ. Deformation events D1, D2 and D3 are considered to have occurred at ca. 1.97–1.93 Ga, 1.93–1.90 Ga and 1.90–1.82 Ga, respectively. These events document that the Khondalite Belt underwent a protracted (>100 Myr) orogenic history in response to the collision between the Yinshan and Ordos blocks.

show abstract

Section: Introductionmentioning

confidence: 99%

Timing and Tectonic Implications of the Development of the Orosirian Qianlishan Ductile Shear Zones in the Khondalite Belt, North China Craton

Qiao,

Liu,

Dai

2024

Minerals

View full text Add to dashboard Cite

show abstract

Geochronology of the Paleoproterozoic Helanshan ductile shear zones: Insights into temporal framework of polyphase deformation in the Khondalite Belt, North China Craton

Qiao,

Zhao,

Yin

et al. 2024

Precambrian Research

View full text Add to dashboard Cite

Dating Strike‐Slip Ductile Shear Through Combined Zircon‐, Titanite‐ and Apatite U–Pb Geochronology Along the Southern Tan‐Lu Fault Zone, East China

Abstract: Intracontinental strike-slip shear zones are typically steeply dipping, high-strain discontinuities that accommodate horizontal displacements of crustal fragments in convergent plate settings (

Cited by 2 publications

References 176 publications

Timing and Tectonic Implications of the Development of the Orosirian Qianlishan Ductile Shear Zones in the Khondalite Belt, North China Craton

Timing and Tectonic Implications of the Development of the Orosirian Qianlishan Ductile Shear Zones in the Khondalite Belt, North China Craton

Geochronology of the Paleoproterozoic Helanshan ductile shear zones: Insights into temporal framework of polyphase deformation in the Khondalite Belt, North China Craton

Contact Info

Product

Resources

About