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Garnet zoning patterns record multiple processes of chemical transfer during subduction (2024)
Journal Article
George, F. R., Viete, D. R., Ávila, J., Seward, G. G., Guice, G. L., Allen, M. B., & Harrower, M. J. (2024). Garnet zoning patterns record multiple processes of chemical transfer during subduction. Earth and Planetary Science Letters, 631, Article 118634. https://doi.org/10.1016/j.epsl.2024.118634

Subduction is the principal mechanism by which volatiles are transferred from the Earth's surface to its interior. In garnets from eclogites and blueschists formed within the subduction setting, fine-scale, oscillatory elemental zoning is a common fe... Read More about Garnet zoning patterns record multiple processes of chemical transfer during subduction.

An oblique subduction model for closure of the Proto-Tethys and Palaeo-Tethys oceans and creation of the Central China Orogenic Belt (2023)
Journal Article
Allen, M. B., Song, S., Wang, C., Zeng, R., & Wen, T. (2023). An oblique subduction model for closure of the Proto-Tethys and Palaeo-Tethys oceans and creation of the Central China Orogenic Belt. Earth-Science Reviews, 240, https://doi.org/10.1016/j.earscirev.2023.104385

Subduction and closure of the Proto-Tethys and Palaeo-Tethys oceans were important events in the assembly of Eurasia, and created the Central China Orogenic Belt (CCOB). This paper presents a new tectonic model for the CCOB in which we propose that e... Read More about An oblique subduction model for closure of the Proto-Tethys and Palaeo-Tethys oceans and creation of the Central China Orogenic Belt.

Syn- and post-collisional potassic to ultrapotassic alkaline and subalkaline volcanic rocks: Heterogeneous mantle metasomatism beneath the North Qaidam orogenic belt (2023)
Journal Article
Qiao, J., Zhou, C., Dong, J., Allen, M. B., Yang, L., Su, L., & Song, S. (2023). Syn- and post-collisional potassic to ultrapotassic alkaline and subalkaline volcanic rocks: Heterogeneous mantle metasomatism beneath the North Qaidam orogenic belt. Lithos, https://doi.org/10.1016/j.lithos.2023.107081

Potassic to ultrapotassic and bimodal volcanic rocks related to the collisional evolution of a continental orogen can provide valuable insights into the properties of the mantle and crust-mantle interactions. Here we report two distinct suites of vol... Read More about Syn- and post-collisional potassic to ultrapotassic alkaline and subalkaline volcanic rocks: Heterogeneous mantle metasomatism beneath the North Qaidam orogenic belt.

Sediment features and provenance analysis of the late Mesozoic–early Cenozoic strata of the Ryukyu Islands: Implications for palaeogeography of East China Sea (2022)
Journal Article
Hou, Y., Shao, L., Cui, Y., Allen, M. B., Zhu, W., Qiao, P., …Goh, T. (2022). Sediment features and provenance analysis of the late Mesozoic–early Cenozoic strata of the Ryukyu Islands: Implications for palaeogeography of East China Sea. Marine and Petroleum Geology, 145, https://doi.org/10.1016/j.marpetgeo.2022.105840

Detrital zircons from high-pressure trench sediments (Qilian Orogen): Constraints on continental-arc accretion, subduction initiation and polarity of the Proto-Tethys Ocean (2022)
Journal Article
Xiong, L., Song, S., Su, L., Zhang, G., Allen, M. B., Feng, D., & Yang, S. (2023). Detrital zircons from high-pressure trench sediments (Qilian Orogen): Constraints on continental-arc accretion, subduction initiation and polarity of the Proto-Tethys Ocean. Gondwana Research, 113, 194-209. https://doi.org/10.1016/j.gr.2022.11.005

The Qilian Orogen in the northern Tibetan plateau records the tectonic history of the Proto-Tethys Ocean from its initial spreading, subduction to final closure. However, the timing of subduction initiation, subduction polarity and arc volcanic proce... Read More about Detrital zircons from high-pressure trench sediments (Qilian Orogen): Constraints on continental-arc accretion, subduction initiation and polarity of the Proto-Tethys Ocean.

Whole-rock and zircon evidence for evolution of the Late Jurassic high-Sr ∕ Y Zhoujiapuzi granite, Liaodong Peninsula, North China Craton (2022)
Journal Article
Zeng, R., Allen, M. B., Mao, X., Lai, J., Yan, J., & Wan, J. (2022). Whole-rock and zircon evidence for evolution of the Late Jurassic high-Sr ∕ Y Zhoujiapuzi granite, Liaodong Peninsula, North China Craton. Solid Earth, 13(8), 1259 - 1280. https://doi.org/10.5194/se-13-1259-2022

Middle–Late Jurassic high- granitic intrusions are extensively exposed in the Liaodong Peninsula in the eastern part of the North China Craton (NCC). However, the genesis of the high signature in these intrusions has not been studied in detail. In th... Read More about Whole-rock and zircon evidence for evolution of the Late Jurassic high-Sr ∕ Y Zhoujiapuzi granite, Liaodong Peninsula, North China Craton.

IBM-type forearc magmatism in the Qilian Orogen records evolution from a continental to an intra-oceanic arc system in the Proto-Tethyan Ocean (2022)
Journal Article
Wen, T., Song, S., Wang, C., Allen, M. B., Dong, J., Feng, D., & Su, L. (2022). IBM-type forearc magmatism in the Qilian Orogen records evolution from a continental to an intra-oceanic arc system in the Proto-Tethyan Ocean. Gondwana Research, 110, 197-213. https://doi.org/10.1016/j.gr.2022.06.016

Forearc magmatism in IBM-type intra-oceanic arc systems is crucial for understanding the processes of subduction initiation and subsequent evolution of the arc system. Here we report a forearc volcanic sequence exposed in the Danghe-Nanshan, at the w... Read More about IBM-type forearc magmatism in the Qilian Orogen records evolution from a continental to an intra-oceanic arc system in the Proto-Tethyan Ocean.

Hydrological control of river and seawater lithium isotopes (2022)
Journal Article
Zhang, F., Dellinger, M., Hilton, R. G., Yu, J., Allen, M. B., Densmore, A. L., …Jin, Z. (2022). Hydrological control of river and seawater lithium isotopes. Nature Communications, 13(1), Article 3359. https://doi.org/10.1038/s41467-022-31076-y

Seawater lithium isotopes (δ7Li) record changes over Earth history, including a ∼9‰ increase during the Cenozoic interpreted as reflecting either a change in continental silicate weathering rate or weathering feedback strength, associated with tecton... Read More about Hydrological control of river and seawater lithium isotopes.

Quaternary Collision-Zone Magmatism of the Greater Caucasus (2022)
Journal Article
Bewick, S., Parkinson, I. J., Harris, N., Adamia, S., Sadradze, N., Allen, M. B., & Hammond, S. (2022). Quaternary Collision-Zone Magmatism of the Greater Caucasus. Journal of Petrology, 63(5), https://doi.org/10.1093/petrology/egac037

The Greater Caucasus mountains (Cavcasioni) mark the northern margin of the Arabia–Eurasia collision zone. Magmatism in the central part of the Greater Caucasus began in the Pleistocene, up to ~25 Myr after initial collision. This paper presents bulk... Read More about Quaternary Collision-Zone Magmatism of the Greater Caucasus.

Understanding historical earthquakes by mapping coseismic landslides in the Loess Plateau, northwest China (2022)
Journal Article
Xu, Y., Liu‐Zeng, J., Allen, M. B., Du, P., Zhang, W., Li, W., & Tian, Q. (2022). Understanding historical earthquakes by mapping coseismic landslides in the Loess Plateau, northwest China. Earth Surface Processes and Landforms, 47(9), 2266-2282. https://doi.org/10.1002/esp.5375

Locating the epicenters and quantifying the magnitudes of historical earthquakes are important, yet difficult, tasks. These tasks often entail estimating seismic intensities based on written documentation, which suffers from biases and uncertainties... Read More about Understanding historical earthquakes by mapping coseismic landslides in the Loess Plateau, northwest China.

Millennial pulses of ore formation and an extra-high Tibetan Plateau (2022)
Journal Article
Li, Y., Allen, M. B., & Li, X. (2022). Millennial pulses of ore formation and an extra-high Tibetan Plateau. Geology, 50(6), 665-669. https://doi.org/10.1130/g49911.1

Quantifying the rhythms and rates of magmatic-hydrothermal systems is critical for a better understanding of their controls on ore formation and the dynamics of magmatic reservoirs that feed them. We reconstructed the evolution of ore-forming fluids... Read More about Millennial pulses of ore formation and an extra-high Tibetan Plateau.