Rights statement: This is the peer reviewed version of the following article: Li, L., Najman, Y., Dupont-Nivet, G., Parra, M., Roperch, P., Kaya, M., Meijer, N., O’Sullivan, P., Jepson, G., & Aminov, J. (2023). Mesozoic–Cenozoic multistage tectonic evolution of the Pamir: Detrital fission-track constraints from the Tajik Basin. Basin Research, 35, 530– 550. https://doi.org/10.1111/bre.12721 which has been published in final form at https://onlinelibrary.wiley.com/doi/10.1111/bre.12721 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.
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Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Mesozoic–Cenozoic multistage tectonic evolution of the Pamir
T2 - Detrital fission-track constraints from the Tajik Basin
AU - Li, Lin
AU - Najman, Yani
AU - Dupont‐Nivet, Guillaume
AU - Parra, Mauricio
AU - Roperch, P.
AU - Kaya, Mustafa
AU - Meijer, N.
AU - O'Sullivan, Paul
AU - Jepson, Gilby
AU - Aminov, Jovid
N1 - This is the peer reviewed version of the following article: Li, L., Najman, Y., Dupont-Nivet, G., Parra, M., Roperch, P., Kaya, M., Meijer, N., O’Sullivan, P., Jepson, G., & Aminov, J. (2023). Mesozoic–Cenozoic multistage tectonic evolution of the Pamir: Detrital fission-track constraints from the Tajik Basin. Basin Research, 35, 530– 550. https://doi.org/10.1111/bre.12721 which has been published in final form at https://onlinelibrary.wiley.com/doi/10.1111/bre.12721 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.
PY - 2023/4/30
Y1 - 2023/4/30
N2 - Knowledge of the tectonic history of the Pamir contributes to our understanding of both the evolution of collisional orogenic belts as well as factors controlling Central Asian aridification. It is, however, not easy to decipher the Mesozoic–Cenozoic tectonics of the Pamir due to extensive Neogene deformation in an orogen that remains largely understudied. This study reports detrital apatite and zircon fission-track (FT) ages from both the eastern Tajik Basin sedimentary rocks and Pamir modern river sands. These FT data, supported by vitrinite reflectance and zircon and apatite U-Pb double dating, suggest that the majority of the FT ages are unreset and record exhumation stages of the Pamir, which has served as the source terrane of the Tajik Basin since the Cretaceous. Further, we combine the new data with a compilation of published detrital apatite and zircon FT data from both the Tajik Basin sedimentary rocks and Pamir modern river sands, to explore the Mesozoic–Cenozoic tectonic history of Pamir. Deconvolved FT Peak Ages document two major Mesozoic exhumation events associated with the Late Triassic–Early Jurassic Cimmerian orogeny that reflects accretion of the Pamir terranes, as well as the Early–early Late Cretaceous deformation associated with the northward subduction of the Neo-Tethys Ocean beneath Pamir. The compiled data also show significant Late Eocene–Neogene exhumation associated with the ongoing formation of the Pamir, which peaks at ~36 Ma, ~25 Ma, ~14 Ma, and ~7 Ma.
AB - Knowledge of the tectonic history of the Pamir contributes to our understanding of both the evolution of collisional orogenic belts as well as factors controlling Central Asian aridification. It is, however, not easy to decipher the Mesozoic–Cenozoic tectonics of the Pamir due to extensive Neogene deformation in an orogen that remains largely understudied. This study reports detrital apatite and zircon fission-track (FT) ages from both the eastern Tajik Basin sedimentary rocks and Pamir modern river sands. These FT data, supported by vitrinite reflectance and zircon and apatite U-Pb double dating, suggest that the majority of the FT ages are unreset and record exhumation stages of the Pamir, which has served as the source terrane of the Tajik Basin since the Cretaceous. Further, we combine the new data with a compilation of published detrital apatite and zircon FT data from both the Tajik Basin sedimentary rocks and Pamir modern river sands, to explore the Mesozoic–Cenozoic tectonic history of Pamir. Deconvolved FT Peak Ages document two major Mesozoic exhumation events associated with the Late Triassic–Early Jurassic Cimmerian orogeny that reflects accretion of the Pamir terranes, as well as the Early–early Late Cretaceous deformation associated with the northward subduction of the Neo-Tethys Ocean beneath Pamir. The compiled data also show significant Late Eocene–Neogene exhumation associated with the ongoing formation of the Pamir, which peaks at ~36 Ma, ~25 Ma, ~14 Ma, and ~7 Ma.
KW - Tajik Basin
KW - Detrital fission-track
KW - Double dating
KW - Pamir tectonics
KW - Mesozoic–Cenozoic
KW - Exhumation
U2 - 10.1111/bre.12721
DO - 10.1111/bre.12721
M3 - Journal article
VL - 35
SP - 530
EP - 550
JO - Basin Research
JF - Basin Research
SN - 0950-091X
IS - 2
ER -