{"doi":"10.1002/essoar.10508374.1","title":"Structure and Geochronology of the Wayanad Schist Belt, Western Dharwar Craton, Southern India","abstract":"<jats:p>The Wayanad Schist Belt (WSB) located along the southern margin of the\nWestern Dharwar Craton (WDC) is a small discontinuous schistose belt\noccur as pockets and patches within basement gneisses. WSB is oriented\nparallel to the E-W trending Moyar Shear Zone (MSZ) separating the WDC\nand Southern Granulite Terrane (SGT). The major rock types include\nmetapelitic schists, metamafic schists, banded magnetite quartzite,\npyroxene granulite, amphibolite, metapyroxenite, mylonite,\nhornblende-biotite schist/gneiss, micaceous quartzite etc. The fabrics\nin schistose rocks are defined mostly by the orientation of\nshape-preferred aggregates of biotite-chlorite-muscovite-sillimanite (in\nmetapelites) and tremolite-talc-chlorite-actinolite (in metamafites).\nWhereas the gneissic fabric is defined by the quartz-plagioclase rich\nleucocratic layers and biotite-garnet-amphibole-pyroxene rich\nmelanocratic layers. The WSB has undergone at least three phases of\ndeformation. The most prominent fabric in WSB is the E-W to ESE-WNW\ntrending sub-vertical foliations developed during the D3 deformation.\nPoles to the steep-dipping S3 foliations are WNW-ESE trending and the F3\nfolds are steeply plunging in nature. At the low strain domains of D3\ndeformation the early foliations are preserved. The N-S to NNW-SSE\ntrending sub-vertical S2 fabric developed axial planar to moderately\ntight to open (F2) folds during D2 deformation. The early S1 foliations\nare rarely preserved in the interfolial domains of S2 foliation. In the\nregional scale, the poles to S1 fabrics lie on a well-defined girdle\nwith NE-SW trending upright asymmetric folds. The U-Th-total Pb dating\nof texturally controlled monazites from WSB has yielded prominent age\npopulations at around 700-850 Ma and 500-600 Ma with minor age peaks at\n2.2-2.3 Ga, 2.4-2.6 Ga. The structural and chronological data suggest\nthat, the deformation events in WSB are similar to that reported from\nthe WDC. However, the D3 deformation is more prominent and all the\nearlier fabrics are truncated or brought into parallelism with the S3\nfabric during D3 deformation. The 700-850 Ma and 500-600 Ma monazite\ngrowths post-tectonic with respect to the D3 deformation indicates that\nthe Neoproterozoic accretionary events affected the whole SGT must have\nrecrystallized the monazites present in the MSZ.</jats:p>","journal":null,"year":null,"id":43242,"datarank":0.0,"base_score":0.0,"endowment":0.0,"self_citation_contribution":0.0,"citation_network_contribution":0.0,"self_endowment_contribution":0.0,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":0,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":null,"is_data_producer":false,"deposit_databanks":null,"is_oa":false,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":null,"fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":205821,"name":"Rekha S","orcid":"0000-0001-5062-1102","position":1,"is_corresponding":false},{"id":205820,"name":"Madhusmita Swain","orcid":"0000-0003-4594-8973","position":0,"is_corresponding":false}],"reference_count":0,"raw_metadata":{"has_enrichment":true,"base_score":0.0,"endowment":0.0,"datacite_reuse_total":0,"file_count":0,"downloads":0,"views":0,"has_version_chain":false,"is_dataset":false,"is_oa":false,"pmid":"20810602","pmcid":null,"openalex_id":"https://openalex.org/W3205162914","authors":[],"funders":[],"total_grants":0,"fwci":0.0,"citation_percentile":0.12483989,"influential_citations":0,"citation_trend":[],"oa_status":"gold","license":"cc-by","oa_locations":[{"url":"https://doi.org/10.1002/essoar.10508374.1","host_type":""},{"url":"https://doi.org/10.1002/essoar.10508374.1","host_type":"GREEN"},{"url":"https://doi.org/10.1002/essoar.10508374.1","host_type":""},{"url":"https://essopenarchive.org/doi/pdf/10.1002/essoar.10508374.1","host_type":"publisher"}],"fields_of_study":["earthquake and tectonic studies","Geological and Geochemical Analysis","Geological and Geophysical Studies","Geology"],"mesh_terms":[],"keywords":["Dharwar Craton","Schist","Geochronology","Geology","Geochemistry","Craton","Seismology","Tectonics"],"sdg_mappings":[],"linked_datasets":[],"clinical_trials":[],"software_tools":[],"database_accessions":[],"source":"live","citation_network_status":"fetched"},"created_at":"2026-06-14T21:01:30.418380Z","pmid":null,"pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}