Journal of the Geological Society最新文献

{"title":"Late Paleozoic magmatism and foreland deformation associated with opening and closing of marginal basins in the North Patagonian Andes","authors":"C. Rapela, M. García, F. Hervé, R. Pankhurst, M. Calderon, C. Fanning, S. Verdecchia","doi":"10.1144/jgs2023-171","DOIUrl":"https://doi.org/10.1144/jgs2023-171","url":null,"abstract":"\u0000 Remnants of coeval Devonian oceanic and continental foreland rocks are preserved in the basement of the North Patagonian Andes. Our previous studies of igneous rocks have shown the primitive oceanic and continental igneous rocks are coeval, and belong to a marginal basin that opened and closed over 50 Myr. A structural study and four new U-Pb SHRIMP ages and zircon Hf-O determinations allow identification of three metamorphic episodes, the first one M\u0000 1\u0000 (D\u0000 1\u0000 -S\u0000 1\u0000 ) coeval with Andean type granite intrusion in the foreland (405–380 Ma). This activity was simultaneous with development of an oceanic ridge and a marginal basin, at the outer edge of which a primitive granitic oceanic arc formed (380–385 Ma; zircon δ\u0000 18\u0000 O 3.6–5.2 δ\u0000 18\u0000 ‰). Ridge extinction initiated under-thrusting of the oceanic crust below the continent and an important mid-to-high grade metamorphic event M\u0000 2\u0000 (D\u0000 2\u0000 -S\u0000 2;\u0000 375–360 Ma), its peak dated by metamorphic zircon rims in migmatite at 365 ± 3 Ma. Basin closure occurred after intrusion of S-type granites (357 ± 2 Ma; zircon δ\u0000 18\u0000 O 7.4–10.4‰) in the foreland, and accretion of gabbros, cumulate gabbros and trondhjemites at the proto-Pacific margin. Compression prevailed for 20 Myr in the foreland, causing a mylonitic medium-grade M\u0000 3\u0000 (D\u0000 3\u0000 -S\u0000 3\u0000 ) event.\u0000 \u0000 \u0000 Supplementary material:\u0000 https://doi.org/10.6084/m9.figshare.c.6989873\u0000","PeriodicalId":17320,"journal":{"name":"Journal of the Geological Society","volume":"65 25","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139385447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Jurassic ophiolitic mélanges in Serbia - a review and new insights","authors":"N. Djerić, H. Gawlick, M. Sudar","doi":"10.1144/jgs2023-165","DOIUrl":"https://doi.org/10.1144/jgs2023-165","url":null,"abstract":"In Serbia ophiolitic mélanges occur widespread below ophiolites. These ophiolites are interpreted to derive from different oceanic domains and are therefore attributed to different tectonic units. We revisited all existing data from matrix ages and blocks in the mélanges, studied the relictic sedimentological features and dated new sections and blocks from various ophiolitic mélanges. On base of these results we can distinguish three different ophiolitic mélanges: 1. Intra-oceanic ophiolitic mélanges (OM1); 2. Ophiolitic mélanges formed during ophiolite obduction with continental blocks (OM2), and 3. Ophiolitic mélanges with fluviatile transported sedimentary rocks or tectonically incorporated much younger blocks at the base (OM3). These three types of ophiolitic mélanges resemble the polyphase history of shortening and ophiolite emplacement on the wider Adria plate of Serbia. All ophiolitic mélanges contain the same Triassic component spectrum of oceanic sedimentary cover rocks and have similar matrix ages. It can be concluded that all different ophiolites/ophiolitic mélanges derive from the same Triassic-Jurassic oceanic domain, the Neotethys Ocean which western part obducted during Middle-Late Jurassic times on wider Adria.\u0000 \u0000 Thematic collection:\u0000 This article is part of the Ophiolites, melanges and blueschists collection available at:\u0000 https://www.lyellcollection.org/topic/collections/ophiolites-melanges-and-blueschists\u0000","PeriodicalId":17320,"journal":{"name":"Journal of the Geological Society","volume":"44 22","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139451989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A salty snapshot: extreme variations in basal erosion patterns preserved in a submarine channel","authors":"J. Casagrande, David M. Hodgson, Jeffrey Peakall","doi":"10.1144/jgs2023-006","DOIUrl":"https://doi.org/10.1144/jgs2023-006","url":null,"abstract":"Active submarine channel bases are marked by large erosional features, such as knickpoints and plunge pools. Their presence in ancient channel-fills has rarely been documented, meaning their importance in submarine channel morphodynamics requires investigation. Using seismic reflection data calibrated by wells from a buried submarine channel-fill, we document erosional features 100s m long and 10s m deep, here interpreted as knickpoints and a plunge pool, and provide a mechanistic process for their transfer into the stratigraphic record for the first time. Channel incision patterns are interpreted to record a transient uplift in an otherwise subsiding depocentre. Local structural complexities in the channel slope formed zones of preferential scouring. A switch to a depositional regime preserved the irregular channel base inhibiting their upstream migration and smoothing of the channel base. Their formation and preservation record responses to salt tectonics and provide a unique snapshot of the formative processes of an ancient submarine channel. The presence of these exceptional basal scours indicates that headward erosion processes did not operate rapidly, challenging the paradigm that knickpoint migration controls channel evolution. Our results show that the primary erosion of the main channel surface, and long-term channel evolution, are dominated by far more gradual processes.","PeriodicalId":17320,"journal":{"name":"Journal of the Geological Society","volume":"7 8","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139450842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Constraining the exhumation history of the Greater Himalayan sequence, Kali Gandaki, Central Nepal","authors":"Alexandra E. Pye, K. Hodges, Todd A. Ehlers, M. V. van Soest, Christopher S. McDonald, Basant Bhandari","doi":"10.1144/jgs2023-100","DOIUrl":"https://doi.org/10.1144/jgs2023-100","url":null,"abstract":"Understanding how the South Tibetan Detachment System (STDS) evolved through time and space is necessary for understanding the evolution of the Himalayan orogen. We present new (with previously published) thermochronologic results from a transect in the footwall and ductile shear zone of the basal structure of the STDS in the Kali Gandaki region: the Annapurna detachment. The exhumation history is interpreted from observations using 1D thermal-kinematic models that invert for the exhumation rate of samples. Recently published data suggested that high-temperature slip on the detachment persisted until at least ca. 12 Ma, more recently than is commonly assumed for STDS deformation. Our new data and modelling support those findings and suggest that the cessation of slip coincided with a dramatic, > 50% decrease in the exhumation rate of the shear zone and its footwall at ca. 12-10 Ma. Exhumation rates remained low until ca. 3 Ma, after which they increased to levels comparable with those that characterised STDS activity. Plausible causes of this late pulse of exhumation include an intensification of the Asian Winter monsoon and establishment of today's Indian Summer Monsoon, glaciation, and/or an internal structural reorganisation of the Himalayan orogenic wedge driving localised rock uplift in the hinterland.\u0000 \u0000 Supplementary material:\u0000 https://doi.org/10.6084/m9.figshare.c.6949467\u0000","PeriodicalId":17320,"journal":{"name":"Journal of the Geological Society","volume":"20 21","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138977160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"3D fault model and seismotectonics indicate the potential seismic risk in the Daliang Mountains, southeastern Tibetan Plateau","authors":"R. Lu, Cuiping Zhao, Jinyu Zhang, Qincai Wang, Xiao Sun, Fang Xu, Haoyue Sun","doi":"10.1144/jgs2023-136","DOIUrl":"https://doi.org/10.1144/jgs2023-136","url":null,"abstract":"\u0000 Area of active tectonics hosts many active faults and frequently experiences moderate to large earthquakes. The possibility of devastating earthquakes makes the development of major infrastructure projects in these areas risky. World-class large-scale step hydroelectric projects were built along the Jinsha River, such as the Xiangjiaba, Xiluodu, Baihetan, and Wudongde reservoirs in the Daliang Mountains of the southeastern Tibetan Plateau. Using the SKUA-GoCAD modeling platform, we created a thorough three-dimensional (3D) model of the active faults. Regional geological information, historical strong earthquake catalogs, small earthquakes with fine displacement, and 3D seismic tomography are all integrated in this model. The Mabian-Yanjin fault belt consists of a number of discontinuous faults that are either exposed on the surface or concealed, according to the 3D fault model. Some destructive earthquakes, including two enormous\u0000 M\u0000 7 and many moderate earthquakes, have occurred along this fault belt. Some pre-existing thrust faults, together with numerous immature faults in specific areas, may have been reactivated and changed into strike-slip faults. The Jinsha River basin's seismic and geological concerns must be carefully considered given the existence of such intricate fault networks and seismic activity.\u0000 \u0000 \u0000 Supplementary material:\u0000 https://doi.org/10.6084/m9.figshare.c.6949201\u0000","PeriodicalId":17320,"journal":{"name":"Journal of the Geological Society","volume":"44 4","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139007126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"New geochemical and age constraints (\u0000 40\u0000 Ar/\u0000 39\u0000 Ar and U-Pb) on forearc intrusive rocks from New Caledonia Ophiolite (SW Pacific): diversity of melts generated at hot subduction inception","authors":"Dominique Cluzel, A. Montanini, A. Secchiari, E. Ferrari, M. Heizler, F. Jourdan, S. Meffre, R. Zhou, C. Teyssier","doi":"10.1144/jgs2023-145","DOIUrl":"https://doi.org/10.1144/jgs2023-145","url":null,"abstract":"\u0000 New Caledonia Ophiolite is crosscut by coarse to medium grained pyroxenites and hornblende gabbros/diorites dykes intruded between 55.5Ma and 50Ma (U-Pb zircon and\u0000 40\u0000 Ar/\u0000 39\u0000 Ar hornblende), while finer-grained dolerites of tholeiitic affinity are younger (50-47 Ma). Production of hornblende-gabbros/diorites was modelled by moderate degree (20-40%) of partial melting of the HT amphibolites of the metamorphic sole. End-member compositions, hornblendites and anorthosites, resulted from solid-state phase segregation of crystal mushes within tectonically active magmatic conduits. Cascade reactions of slab melts with mantle wedge peridotites successively formed clinoenstatite-boninite magmas, which fed gabbronorite cumulate lenses at the mantle-crust transition, in turn clinoenstatite-boninite melts reacted with peridotites to form websterites. The youngest magmas of tholeiitic affinity, appeared about 6 Ma after subduction inception when the cooler subducting slab plunged more steeply. Incipient slab retreat allowed corner flow, triggering low pressure hydrous melting of the uplifted asthenosphere . The early stages of forearc magmatism were closely associated with transcurrent shear zones, which recorded oblique subduction inception. The lower Eocene tectonic and magmatic features of the New Caledonia ophiolite witness the existence of a north- or northeast-dipping hot (forced) subduction zone in the Southwest Pacific, which appears notably distinct from the slightly younger west-dipping Izu-Bonin-Marianna cold (spontaneous) subduction system.\u0000 \u0000 \u0000 Thematic collection:\u0000 This article is part of the Ophiolites, melanges and blueschists collection available at:\u0000 https://www.lyellcollection.org/topic/collections/ophiolites-melanges-and-blueschists\u0000 \u0000 \u0000 Supplementary material:\u0000 https://doi.org/10.6084/m9.figshare.c.6949265\u0000","PeriodicalId":17320,"journal":{"name":"Journal of the Geological Society","volume":"31 19","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139007694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Late Cryogenian and Early Ediacaran rare metal-rich granites in the Eastern Desert of Egypt: constraints from zircon ages and whole-rock Sr- and Nd- and feldspar Pb- isotopic compositions","authors":"R. Stern, M. Khedr, M. Whitehouse, Rolf L. Romer, Saif M. Abo Khashaba, N. H. El-Shibiny","doi":"10.1144/jgs2023-068","DOIUrl":"https://doi.org/10.1144/jgs2023-068","url":null,"abstract":"\u0000 Rare metals (Nb, Ta, Y, Zr, Sn, U, W and REE) are economically important and new supplies need to be found. In order to understand Neoproterozoic rare metal granites of the Arabian-Nubian Shield (ANS), six samples from five rare metal mineralized alkali feldspar granites, syenogranites and granodiorite from the Central and SE Desert of Egypt were studied for zircon U-Pb ages and O isotopic compositions as well as whole-rock Sr- and Nd- and alkali feldspar Pb- isotopic compositions. These are transitional between I-type and A-type granites, mostly high-K calc-alkaline, peraluminous granites with gullwing-shaped REE patterns and strongly negative Eu anomalies\u0000 . \u0000 Four granites gave mantle-like zircon\u0000 \u0000 \u0000 δ\u0000 \u0000 \u0000 18\u0000 O\u0000 V-SMOW\u0000 between 4.2 and 5.96 ‰ and yielded ages of 628-633 Ma. This is about when subduction-related magmatism began to be replaced by collision-related magmatism. Igla Ahmr granites are older, formed at 691.7 - 678.9 Ma with\u0000 \u0000 \u0000 δ\u0000 \u0000 \u0000 18\u0000 O\u0000 V-SMOW\u0000 ∼5.95 ‰\u0000 .\u0000 All have positive initial\u0000 \u0000 \u0000 ε\u0000 \u0000 \u0000 Nd\u0000 values (+3.3 to +6.9) typical for mantle and juvenile crust. Pb isotopic compositions are unusually radiogenic compared to unmineralized ANS granitic rocks. The data indicate similar magmatic sources for ANS mineralized and un-mineralized granites. Exploration for other rare-metal mineralized granites in the ANS should focus on bodies with similar characteristics.\u0000 \u0000 \u0000 Supplementary material:\u0000 https://doi.org/10.6084/m9.figshare.c.6949402\u0000","PeriodicalId":17320,"journal":{"name":"Journal of the Geological Society","volume":"19 5","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139007322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spatio-temporal distribution of magmatism and crustal inheritance within an extensional-rotational environment: An updated geochronology of the Miocene & Quaternary magmatism of the South Apuseni Mountains","authors":"V.V. Ene, S. Tapster, D.J. Smith, C. Panaiotu, E. Roşu, J. Naden, M. Munteanu","doi":"10.1144/jgs2023-048","DOIUrl":"https://doi.org/10.1144/jgs2023-048","url":null,"abstract":"Magmatism with arc-like features, formed in extensional settings, was active in the South Apuseni Mountains, Romania, during the Neogene and Quaternary periods. To date the chronological framework is primarily restricted to K-Ar dates. We present newly determined LA-ICP-MS U-Pb zircon age data for subvolcanic and volcanic rocks (N=20) from 8 different Cenozoic volcanic-intrusive complexes and from Jurassic and Cretaceous lava flows. Our results support magmatic ages between c. 14 to c. 7 Ma, with Uroi, an alkaline intrusion, occurring significantly later at c. 1.5 Ma. Revising the timeline for the South Apuseni Mountains paleomagnetic rotations shows that most of the vertical-axis clockwise rotation of the Apuseni Mountains (54.4° ± 10.7°) took place between approximately 14 and 11 Ma, the age interval when the majority of magmas were emplaced. Xenocrystic zircon dates exhibit differences in age populations between individual volcanic-intrusive complexes. A Permo-Triassic population is almost ubiquitous, indicating that basement Permo-Triassic igneous rocks are more widespread than previously thought or that they were significantly involved in the generation of Neogene magmas. However, other observed age populations, such as Triassic or Paleogene have no clear correspondence in the known geological record, indicating the presence of a cryptic component interacting with Neogene magmas.\u0000 \u0000 Supplementary material:\u0000 https://doi.org/10.6084/m9.figshare.c.6951429\u0000","PeriodicalId":17320,"journal":{"name":"Journal of the Geological Society","volume":"6 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139009728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"New stratigraphic and paleontological data from carbonates related to the Vourinos-Pindos ophiolite emplacement: Implications for the provenance of the ophiolites (Hellenides)","authors":"Georgia Kostaki, Hans-Jürgen Gawlick, Sigrid Missoni, Adamantios Kilias, Emmanouil Katrivanos","doi":"10.1144/jgs2023-127","DOIUrl":"https://doi.org/10.1144/jgs2023-127","url":null,"abstract":"Microfacies analysis and conodont dating on carbonates associated with the Vourinos-Pindos ophiolite emplacement on the Pelagonian unit in northern Greece, combined with structural analysis, enhance our understanding of the palaeogeography and geotectonic evolution of the Hellenides. We focus on a dismembered Triassic Hallstatt Limestone succession incorporated as blocks in the Middle-Late Jurassic Avdella ophiolitic mélange, which is identical to a Triassic succession in the western Pindos (Hallstatt/Pindos succession). Initially, the Hallstatt/Pindos succession was deposited on the outer shelf along the eastern Pelagonian margin and later incorporated into the mélange during west-directed obduction processes. During the Middle to early Late Jurassic, ophiolites obducted on the eastern Pelagonian margin, resulting in a nappe stack in front of the ophiolites in the lower plate position. Newly formed trench-like basins in front of the advancing nappe stack became filled with sedimentary mélanges, consisting of ophiolitic material mixed with blocks from the Hallstatt/Pindos succession, deposited in an outer shelf position. Subsequently, the Pindos ophiolites overthrust their foreland basin, forming a typical ophiolitic mélange (Avdella mélange). Consequently, the Triassic-Middle Jurassic Hallstatt/Pindos succession represents a far-traveled Middle-Late Jurassic nappe deriving east of the Pelagonian unit, which was bulldozed westward in front of the west-directed obducting Neotethys ophiolites. Thematic collection: This article is part of the Ophiolites, melanges and blueschists collection available at: https://www.lyellcollection.org/topic/collections/ophiolites-melanges-and-blueschists","PeriodicalId":17320,"journal":{"name":"Journal of the Geological Society","volume":"67 22","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136281717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The early history of the Neotethys archived in the ophiolitic mélange of northwestern Croatia","authors":"Duje Kukoč, Damir Slovenec, Branimir Šegvić, Matija Vukovski, Mirko Belak, Tonći Grgasović, Marija Horvat, Duje Smirčić","doi":"10.1144/jgs2023-143","DOIUrl":"https://doi.org/10.1144/jgs2023-143","url":null,"abstract":"Ophiolite exposures in NW Croatia have been attributed to the Western Vardar Ophiolitic Unit and interpreted as derived from the Meliata-Maliac-Vardar branch of the Neotethys. Blocks within the ophiolitic mélange on Mt. Ivanščica were investigated for petrological and geochemical characteristics of effusive rocks and radiolarian dating of associated pelagic sedimentary rocks. Analysed effusive basic rocks represent chemographically uniform sub-alkaline high-Ti massive tholeiitic basalts characterized by an enriched composition typical of E-MORB. These basalts are compatible with approximately 9 to 11% of partial melting of an enriched mantle source transitional between primitive and depleted MORB-type mantle and are formed in the non-subduction geotectonic setting of E-MORB-type. This reflects an initial succession of oceanic protocrust formation and the onset of ocean spreading. Radiolarians from chert and shale succession associated with basalts indicate a Late Anisian to Early Ladinian age of the initial ocean floor spreading, which continued into the Langobardian. Obtained data are correlative with reported blocks interpreted as remnants of the Triassic Neotethys crust from the ophiolitic mélange of the Western Vardar Ophiolitic Unit and further reaffirm common origin from a single ocean basin located east of the Adria microplate. Thematic collection: This article is part of the Ophiolites, melanges and blueschists collection available at: https://www.lyellcollection.org/topic/collections/ophiolites-melanges-and-blueschists","PeriodicalId":17320,"journal":{"name":"Journal of the Geological Society","volume":"36 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136346847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}