Plate tectonics: what, where, why, and when? by Palin, R, Santosh, M

Quantifying geological uncertainty in metamorphic phase equilibria modelling; a Monte Carlo assessment and implications for tectonic interpretations by Palin, R, Weller, O, Waters, D, Dyck, B

Mafic Archean continental crust prohibited exhumation of orogenic UHP eclogite by Palin, R, Moore, J, Zhang, Z, Huang, G, Wade, J, Dyck, B

“…UHP orogenic eclogite may thus readily have formed on the Archean Earth, but could not have been exhumed, weakening arguments for a Neoproterozoic onset of subduction and plate tectonics. Further, isostatic balance calculations for more mafic Archean continents indicate that the early Earth was covered by a global ocean over 1 km deep, corroborating independent isotopic evidence for large-scale emergence of the continents no earlier than c. 3 Ga. …”

Metamorphic consequences of secular changes in oceanic crust composition and implications for uniformitarianism in the geological record by Palin, R, Dyck, B

“…This hypothesis underpins several recent studies that have addressed key geological questions concerning evolving plate tectonic styles, the rates and timing of continental crust formation, comparative planetology, and the emergence of complex life on Earth. …”

Metamorphism during the Archean–Paleoproterozoic Transition Associated with Microblock Amalgamation in the Dharwar Craton, India by Li, S, Santosh, M, Palin, R

“…Numerous tectonic scenarios have been proposed for terrane growth and accretion within the Archean Dharwar Craton, southern Peninsular India. …”

Plume —lid interactions during the Archean and implications for the generation of early continental crust by Piccolo, A, White, R, Kaus, B, Palin, R, Reuber, G

“…Many Archean terranes are interpreted to have a tectonic and metamorphic evolution that indicates intra-crustal reorganization driven by lithospheric-scale gravitational instabilities. …”

Evolution and modification of lithospheric mantle within deeply continental subduction zone: Insights from two contrasting orogenic garnet peridotites in South Altun–North Qaidam b... by Guo, J, Li, Y, Palin, R, Zhang, J, Yu, S

“…Orogenic garnet peridotites can shed light on the understanding of upper mantle petrology and the tectonic processes that operate at convergent plate boundaries. …”

Quantifying Barrovian metamorphism in the Danba Structural Culmination of eastern Tibet by Weller, O, St-Onge, MR, Waters, D, Rayner, N, Searle, M, Chung, S, Palin, R, Lee, Y, Xu, X

“…The Danba Structural Culmination is a tectonic window into the late Triassic to early Jurassic Songpan-Garzê Fold Belt of eastern Tibet, which exposes an oblique section through a complete Barrovian-type metamorphic sequence. …”

Partial melting of metabasic rocks and the generation of tonalitic–trondhjemitic–granodioritic (TTG) crust in the Archaean: Constraints from phase equilibrium modelling by Palin, R, White, R, Green, E

“…This optimal P–T range of 800–950 °C and 10–18 kbar defined herein is most likely to characterise metamorphism of hydrated basalt at the base of a 40-km-thick Archaean oceanic plateau/overthickened crust, or else tectonic underplating via shallow subduction, which we therefore suggest are the most likely tectonic settings for the formation of the first voluminous continental crust on the early Earth.…”

Subduction metamorphism in the Himalayan ultrahigh-pressure Tso Morari massif: an integrated geodynamic and petrological modelling approach by Palin, R, Reuber, G, White, R, Kaus, B, Weller, O

“…The Tso Morari massif is one of only two regions where ultrahigh-pressure (UHP) metamorphism of subducted crust has been documented in the Himalayan Range. The tectonic evolution of the massif is enigmatic, as reported pressure estimates for peak metamorphism vary from ∼2.4 GPa to ∼4.8 GPa. …”

Towards resolving the metamorphic enigma of the Indian Plate in the NW Himalaya of Pakistan by Treloar, P, Palin, R, Searle, M

“…The Pakistan part of the Himalaya has major differences in tectonic evolution compared with the main Himalayan range to the east of the Nanga Parbat syntaxis. …”

A comparison of observed and thermodynamically predicted phase equilibria and mineral compositions in mafic granulites by Forshaw, J, Waters, D, Pattison, D, Palin, R, Gopon, P

“…Here, petrological modelling was applied to six granulite facies rocks that formed in different tectonic environments and reached different peak metamorphic pressure–temperature (P–T) conditions. …”

Combined thermobarometry and geochronology of peraluminous metapelites from the Karakoram metamorphic complex, North Pakistan; New insight into the tectonothermal evolution of the... by Palin, R

“…This event is thought to represent evidence for conductive heating of the middle crust during early stages of intrusion and lateral migration of the Baltoro batholith, with thermal conditions comparable with tectonic models of magmatic over-accretion.…”

Origin, age and petrogenesis of barren (low-grade) granitoids from the Bezenjan-Bardsir magmatic complex, southeast of the Urumieh-Dokhtar magmatic belt, Iran by Sepidbar, F, Ao, S, Palin, R, Li, Q, Zhang, Z

“…An integrated geochemical, petrological, and tectonic model suggests that barren magmatism in the BBMC was likely associated with partial melting of juvenile lower crust (amphibolite) due to northwestward subduction of the Neo-Tethys oceanic lithosphere, whereas productive adakitic rocks within the UDMB formed by partial melting of thickened lower crust (garnet-amphibolite).…”

A new record of deeper and colder subduction in the Acatlán complex, Mexico: Evidence from phase equilibrium modelling and Zr-in-rutile thermometry by Hernández-Uribe, D, Gutiérrez-Aguilar, F, Mattinson, C, Palin, R, Neill, O

“…Variable pressure–temperature (P–T) conditions and paths have previously been reported from eclogites and blueschists from the Acatlán complex, Mexico; yet, the large range of P–T estimates, and uncertainties related with conventional thermobarometry suggest that the P–T evolution of the Acatlán complex remains incompletely understood hindering reliable tectonic interpretations. In this paper, we focus on two high-pressure samples: a phengite eclogite and a garnet-epidote blueschist. …”

Petrogenesis of arc-related peridotite hosted chromitite deposits in Sikhoran-Soghan mantle section, South Iran: evidence for proto-forearc spreading to boninitic stages by Sepidbar, F, Khedr, MZ, Ghorbani, MR, Palin, R, Xiao, Y

“…The main part of the Soghan-Sikhoran ophiolite comprises layered ultramafic cumulates including dunites, wehrlites, and pyroxenites, and a tectonized mantle section including residual lherzolites, and depleted harzburgites with foliated/discordant dunite lenses. …”

A geochronological and petrological study of anatectic paragneiss and associated granite dykes from the Day Nui Con Voi metamorphic core complex, North Vietnam: constraints on the... by Palin, R, Searle, M, Waters, D, Parrish, R, Horstwood, M, Roberts, N, Yeh, M, Chung, S, Anh, T

“…Various lithologies from the southernmost core complex, the Day Nui Con Voi (DNCV), North Vietnam, provide new constraints on the tectonic and metamorphic evolution of this region prior to and following the initial India–Asia collision. …”

A geochronological and petrological study of anatectic paragneiss and associated granite dykes from the Day Nui Con Voi metamorphic core complex, North Vietnam: constraints on the... by Palin, R, Searle, M, Waters, D, Parrish, R, Roberts, N, Horstwood, M, Yeh, M, Chung, S, Anh, T

“…Various lithologies from the southernmost core complex, the Day Nui Con Voi (DNCV), North Vietnam, provide new constraints on the tectonic and metamorphic evolution of this region prior to and following the initial India-Asia collision. …”