Jonathan C. Aitchison

Jonathan C. Aitchison
The University of Queensland | UQ · School of Earth and Environmental Sciences

Ph.D.

About

482
Publications
104,449
Reads
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10,606
Citations
Introduction
Currently working on two main themes that involve very different projects: India-Asia collision including evolution of the Tethyan-Himalayan system as well as initiation of intra-oceanic subduction in the Neotethyan Ocean, and Early Palaeozoic radiolarian evolution using microCT imaging technology
Additional affiliations
January 2022 - present
The University of Queensland
Position
  • Professorial Research Fellow
January 2017 - December 2021
The University of Queensland
Position
  • Head of Department
February 2015 - December 2016
The University of Queensland
Position
  • Head of Department

Publications

Publications (482)
Article
Full-text available
Extensive field investigations along the Yarlung–Zangbo suture zone in southern Tibet reveal the presence of now fragmented remnants of a south-facing intra-oceanic subduction system. This system developed within Tethys during the Cretaceous. The associated arc, forearc ophiolite, and subduction complex were emplaced onto the leading edge of India...
Article
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Oceanic mafic volcanic rocks preserve unique information regarding the nature and evolution of tectonic plates. However, constraining their age is commonly challenging because of their lack of datable minerals and high degrees of alteration. We present in situ laser ablation-inductively coupled plasma-mass spectrometry U-Pb dating of calcite phases...
Article
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Dominantly Mesozoic to Proterozoic xenocrystic zircons extracted from Tiébaghi chromitite coexist with a well-defined population (30%) of Eocene magmatic grains (U-Pb: 48.2 ± 1.1 Ma). Since Eocene zircons are absent in the peridotite host rock and are accompanied by rare rutiles with the same age range, it is suggested that both are derived from th...
Article
Full-text available
Plain Language Summary Peer review is the key process through which every paper submitted to Tectonics is vetted, ensuring that each publication maintains the highest standards of scientific rigor and integrity. We depend on, and are grateful to, all of the volunteer peer reviewers who have devoted their time and considerable efforts toward this es...
Article
Accurate lithostratigraphy framework of the Central Qilian belt is key to understand subduction-collision of the Proto-Tethyan Ocean in the NE Tibetan Plateau. The Dongchagou and the Moshigou formations share similar detrital zircon age populations with youngest age peak at ca. 1.15−1.21 Ga, which is consistent with the granitoid gneiss of the Liuj...
Article
Full-text available
Tectonic interpretations of arc remnants in the Himalayan orogen remain uncertain, despite their important implications for the overall convergence history between India and Eurasia. Provenance results from deep-water volcaniclastic rocks of the Indus Suture Zone in Ladakh provide new constraints on the Mesozoic tectonic evolution of the Dras and K...
Article
Conglomerates, exposed on either side of the Yarlung Tsangpo suture zone (YTSZ) in southern Tibet, have attracted wide attention in elucidating uplift and erosion histories of the Himalayan-Tibetan orogen. However, the provenance of these conglomerates remains controversial. Although radiolarian-bearing chert clasts within these conglomerates have...
Article
The South Qilian suture in the Qilian Orogen is an early Paleozoic belt that developed as a result of closure of the southern branch of the Proto-Tethyan Ocean. It is characterized by widespread Cambrian intermediate-basic volcanic rocks which record the early-stage evolution of the paleo-ocean basin. However, Cambrian evolution of the paleo-ocean...
Article
The Cecrops septemporatus Zone is widely applied in correlation of Valanginian to lower Hauterivian successions, but paleobiogeographic distributions of radiolarian fauna from this zone remain ambiguous. To address this issue this study compares radiolarian faunas from the Vispi Quarry section, Umbria–Marche Basin, central Italy with the Guigong se...
Article
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Recognition of any intra-oceanic arc-trench system (IOAS) could provide invaluable information on the tectonic framework and geodynamic evolution of the vanished ocean basin. The Tanjianshan Complex and mafic-ultramafic rocks along the North Qaidam ultra-high pressure metamorphic belt in NW China record the subduction process of the Proto-Tethyan O...
Article
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Voluminous flux of a hydrous component from subducting oceanic lithosphere into the forearc mantle and its contribution to arc magmas have long been recognised but the transfer of solid-phase materials has received less consideration. Although xenocrystic zircons are known from some arc magmas and ophiolitic chromitites their origins remain enigmat...
Article
Lajishan suture in the Qilian Orogen records subduction process of the southern branch of the Proto-Tethyan Ocean. However, when and where the subduction started remain controversial issues. We present a study of the Cambrian volcanic rocks from the Lajishan suture. These volcanic rocks are coherent and composed of basalt, andesite, and volcanic br...
Article
Full-text available
A diverse, well-preserved radiolarian assemblage is reported from the Sandbian age Climacograptus bicornis Graptolite Biozone. This new assemblage, recovered from the Pingliang Formation in the Guanzhuang section, China, includes six new species along with 13 other previously described taxa. Geminusphaera new genus incorporates G . grandis n. sp. a...
Article
Well-preserved Middle Jurassic (upper Bajocian to lower Bathonian) radiolarian assemblages from bedded cherts constrain the age of cherts associated with the Dajiweng ophiolite in the northern sub-belt of the western section of the Yarlung Tsangpo suture zone (YTSZ). Sixty-one species belonging to 39 genera are recognized and illustrated. They repr...
Article
The accretionary complex (AC) in the North Qilian belt comprises coherent and chaotic units consisting of bedded cherts, pelagic mudstone, shale, turbidites, basalt, limestone, blueschist, eclogite lenses, and ophiolitic mélange. Cherts from the Donggoukou and Biandukou outcrops in the north of blueschist belt contain abundant Middle Ordovician rad...
Article
Moderately to well-preserved radiolarian faunas belonging to 51 genera and 81 species have been identified in a continuous bedded chert succession in the Jiangyema section in the west segment of the Yarlung Tsangpo suture zone (YTSZ), Purang county, SW Tibet. Based on the occurrence of some characteristic species, especially the evolutionary appear...
Article
This study analyses the success and limitations of the recovery process following the 2010-11 earthquake sequence in Christchurch, New Zealand. Data were obtained from in-depth interviews with 32 relocated households in Christchurch, and from a review of recovery policies implemented by the government. A top-down approach to disaster recovery was e...
Article
Full-text available
New, distinctive, well-preserved and previously undescribed constituents of a Middle Ordovician (middle Darriwilian, Dw2) radiolarian assemblage from the Table Cove Formation in Newfoundland are described. Three-dimensional X-ray micro-computed tomography (μ-CT) facilitates detailed examination of key specimens revealing hitherto unknown details of...
Article
Full-text available
Key Points The editors thank the 2020 peer reviewers
Article
The Ladakh Arc was formed by subduction of Neotethyan oceanic lithosphere along the southern Eurasian margin before magmatic activity ceased upon the continental collision between India and Eurasia. The onset of arc magmatism is critical in terms of understanding when this subduction began. Termination of arc activity is associated with continental...
Article
Full-text available
The New Caledonia Ophiolite (Peridotite Nappe), represents about one third of the island's surface (i.e. 5 500 km²). The ophiolite is composed of harzburgites, dunites, lherzolites, minor mafic‐ultramafic cumulates, and various dykes and sills. The mantle section underwent a polyphase evolution, which involved prominent depletion and re‐fertilizati...
Article
The Qilian orogenic belt is the northernmost orogen of the Tethyan domain and connects the Altaids to the north. It contains an assembly of Precambrian micro‐continental fragments, early Paleozoic island arcs, accretionary complexes, ophiolites, forearc and backarc basins, and high‐pressure (HP) metamorphic rocks, indicating a long history of accre...
Article
Full-text available
Lake basins record critical interactions between the hydrosphere, cryosphere and atmosphere. Their sediments and shoreline landforms archive timing, duration, and intensity of past climatic variability and environmental impacts over a variety of timescales. Thousands of lake systems spread across the internally drained Tibetan Plateau today, of whi...
Article
Full-text available
The South Qilian belt mainly comprises an early Paleozoic arc‐ophiolite complex, accretionary prism, micro‐continental block, and foreland basin. These elements represent accretion‐collision during Cambrian to Silurian time in response to closure of the Proto‐Tethyan Ocean in the NE of the present‐day Tibet Plateau. Closure of the Proto‐Tethyan Oce...
Article
The Cenozoic history of aridification in the Asian interior is thought to be intimately linked to uplift of the Tibetan Plateau and long-term global cooling. How fluctuating climatic conditions influenced regional moisture levels during the Cenozoic remains largely unknown. To infer moisture changes, we present oxygen isotope values of carbonates (...
Article
Full-text available
Cambrian mafic to felsic intrusive rocks intruding Precambrian rocks are recognized along the southern margin of the North Qilian suture zone. These intrusive rocks predate final closure of the North Qilian Ocean and consideration of these rocks is essential to any reconstruction of the tectonic framework of the Qilian Orogen. They include 517 Ma t...
Article
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X-ray micro-computed tomography (micro-CT) is used to resolve the detailed internal architecture of the siliceous skeletons of two well-preserved middle Cambrian (Miaolingian Series) radiolarians from the Inca Formation of the Georgina Basin, Australia. Digital dissections of specimens of Archeoentactinia incaensis and A. tetractinia reveal for the...
Article
Based on a comprehensive literature survey, we determined the sources of the terrestrial vertebrate species on Christmas Island, asking where they originated relative to Wallace’s Line (the southern end of the divide lies 1100 km to the east, where the Lombok Strait adjoins the eastern Indian Ocean). The two bats, Pipistrellus murrayi and Pteropus...
Article
Full-text available
A diverse assemblage of moderately well-preserved radiolarians occurs in the Ordovician cherts of the Crawford Group in the Southern Uplands terrane of the Scottish borders. A total of 8 genera and 11 species are described. Taxa present correlate to the Middle Ordovician Pygodus anserinus biozone. Key species identified include: Proventocitum proce...
Article
Full-text available
Based on a comprehensive literature survey, we determined the sources of the terrestrial vertebrate species on Christmas Island, asking where they originated relative to Wallace’s Line (the southern end of the divide lies 1100 km to the east, where the Lombok Strait adjoins the eastern Indian Ocean). The two bats, Pipistrellus murrayi and Pteropus...
Article
The Disang Group incorporates the oldest Cenozoic clastic sedimentary rocks that crop out in a series of NNE–SSW trending ridges and valleys throughout much of the Naga Hills. The stratigraphic position of this unit is not well constrained due to a paucity of definitively recognisable, in situ fossils. We report forty-four species attributable of t...
Article
Lower to Middle Triassic clastic rocks in the West Qinling Mountains along NE margin of the Qinghai-Tibet Plateau are generally regarded as part of the Songpan-Ganzi flysch Basin. However relatively little attention has been paid to the age and provenance of these units. New petrological and geochemical results demonstrate that these sediments accu...
Article
Full-text available
Peer review is an essential component of scientific publishing, ensuring that our science is well communicated, accurately documented, appropriately placed in the context of prior work, and effectively archived for future usage, all within a timeframe that ensures the highest possible impact. The 200 papers published in Tectonics in 2019 benefitted...
Article
Full-text available
A new, previously undescribed Middle Ordovician (middle Darriwilian: Dw2) radiolarian assemblage has been recovered from the Table Cove Formation at Piccadilly Quarry, western Newfoundland. Constituents of the fauna described herein are both distinctive and exceptionally well preserved. Three-dimensional X-ray micro-computed tomography (μ-CT) is us...
Article
Christmas Island in the eastern Indian Ocean forms the pinnacle of a once-drowned, coral atoll. Exactly when the seamount re-emerged above the seas is, unfortunately, imprecisely understood. One of the consequences of this uncertainty is that it can hamper studies dealing with its landlocked faunal assemblage. We attempt to address this issue using...
Article
Full-text available
The compositions and ages of the sediments within retro or foreland basins that are formed and preserved adjacent to collisional orogens can reflect the nature of colliding tectonic elements. The nonmarine Yaoshuiquan and Huabaoshan formations in the South Qilian belt on the NE Tibetan Plateau deposited within a retro‐foreland basin setting during...
Conference Paper
Full-text available
The New Caledonia Ophiolite (Peridotite Nappe), represents about one third of the island’s surface (i.e. 5 500 Km2). The ophiolite is composed of harzburgites, dunites, lherzolites, minor mafic‐ultramafic cumulates, and various dykes and sills. The mantle section underwent a polyphase evolution, which involved prominent depletion and re‐fertilizati...
Article
The Yadong area was located in the residual Neo-Tethyan basin during the Paleogene. It contains a record of the youngest marine deposition in the Tethyan Himalayas. Therefore, biostratigraphic data from this area are essential to constrain the timing of elimination of the Tethyan Ocean and the India-Asia collision. Ostracods are one of the most div...
Article
Oceanic anoxic events (OAEs) are well-known from their widespread black shale and carbon isotopic excursions in the (western and eastern) Tethys and Atlantic Ocean. However, the weakest link in the studies of the OAEs is biological evolution. Sedimentological, biostratigraphical and geochemical data from Albian to Coniacian strata in southern Tibet...
Article
Full-text available
Lower to Middle Triassic clastic rocks in the West Qinling Mountains along NE margin of the Qinghai-Tibet Plateau are generally regarded as part of the Songpan-Ganzi flysch Basin. However relatively little attention has been paid to the age and provenance of these units. New petrological and geochemical results demonstrate that these sediments accu...
Preprint
Eclogite from two locations in a fossil accretionary complex now exposed in Nagaland, NE India, at the northern end of the Indo-Myanmar ranges, provides the oldest evidence for Neo-Tethyan subduction along the Yarlung-Tsangpo suture zone. Metamorphic texture, mineral composition, peak metamorphic P-T estimates, reconstructed metamorphic P-T paths,...
Article
Full-text available
Results of biostratigraphic and geochronological investigations in eastern Nagaland and Manipur, NE India provide new constraints on the tectonic evolution of the western margin of the Burma microplate. U/Pb zircon ages indicate that the Naga Hills ophiolite developed in a supra-subduction zone setting as part of an intra-oceanic island arc develop...
Article
Full-text available
Many ophiolite complexes like those of Oman and New Caledonia represent fragments of ancient oceanic crust and upper mantle generated at supra‐subduction zone environments and have been obducted onto the adjacent rifted continental margin together with the accretionary complexes and intra‐oceanic arcs. The Lajishan ophiolite complexes in the Qilian...
Article
The Qilian orogen along the NE edge of the Tibet‐Qinghai Plateau records the evolution of Proto‐Tethyan Ocean that closed through subduction along the southern margin of the North China block during the Early Paleozoic. The South Qilian belt is the southern unit of this orogen and dominated by Cambrian‐Ordovician volcano‐sedimentary rocks and Neopr...
Article
Full-text available
Knowledge of the detailed architecture of the earliest radiolarian microfossils is key to resolving the evolution and systematics of this important group of marine protozoans. Non-destructive methods for observing the complexity within the internal structures of their siliceous skeletons have long eluded paleontologists. By developing methodologies...
Article
Full-text available
The Qilian Orogen in the northern margin of the Tibetan Plateau is the northernmost of the Tethyan domain. Abundant ophiolites record the closure of an early Tethyan ocean and amalgamations between micro-continents of North China, Qaidam, and Tarim. The Muli arc–ophiolite complex in the western segment of the South Qilian belt represents remnants o...
Article
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The Spongtang Massif is a remnant of Neotethyan ocean crust emplaced onto the Indian passive margin along the Indus-Yarlung-Tsangpo Suture in the NW Himalayan region of Ladakh. The age, tectonic evolution and timing of ophiolite obduction are critical to our understanding of the mechanisms via which entire oceans are formed, consumed and partly pre...
Article
The Paleocene/Eocene (P/E) boundary interval is the most significant climatic transition during the Cenozoic, when the PETM (Paleocene Eocene Thermal Maximum) caused rapid warming and severe fluctuation of the Earth system, especially in marine settings. The SW Tarim Basin represents a distal branch of the NE Tethys, exposing Paleocene to Eocene su...
Article
Full-text available
The Lajishan ophiolite complex in the Qilian Orogen is one of several ophiolites situated between the Qaidam and North China blocks that record episodic closure of the Proto-Tethyan Ocean. Detailed field relations and geochemical and geochronological studies are critical to unraveling the tectonic processes responsible for an extensive period of in...
Article
Walegen Au deposit is closely correlated with granitic intrusions of Triassic age, which are composed of granite and quartz porphyries. Both granite porphyry and quartz porphyry consist of quartz, feldspar and muscovite as primary minerals. Weakly peraluminous granite porphyry (A/ CNK=1.10–1.15) is enriched in LREE, depleted in HREE with Nb-Ta-Ti a...
Article
Full-text available
The Poya Terrane of New Caledonia is a composite lithotectonic unit made of i) Campanian-Paleocene E-MORB and BABB-type basalts and abyssal argillite (Poya Terrane Basalts); and ii) Coniacian-Santonian sandstone, turbidite and abyssal argillite (Kone Facies) intruded by Early Eocene E-MORB sills. Remapping reveals that the Kone Facies is more exten...
Article
The Gubaoquan eclogite occurs in the Paleozoic Beishan Orogen of NW China. Previously it has been interpreted as a fragment of subducted oceanic crust that was emplaced as a mélange within continental rocks. Contrary to this, we demonstrate that the Gubaoquan eclogite protolith was a Neoproterozoic basic dyke/sill which intruded into Proterozoic co...
Article
The purpose of this paper is to present a revised classification of Paleozoic radiolarians at the genus level in the form of a series of plates displaying the images of the type species of each genus. These photos are supplemented by an indication of the status of the genus decided by an international team of specialists in this fossil group (Chapt...
Article
Full-text available