Tectonic setting of the Balaram-Kui-Surpagla-Kengora granulites of the South Delhi Terrane of the Aravalli Mobile Belt, NW India and its implication on correlation with the East African Orogen in the Gondwana assembly

Provenance and tectonic significance of the Palaeoproterozoic metasedimentary successions of central and northern Madagascar

“…This comprised present-day South India and parts of Sri Lanka and possibly either the Antananarivo, Antongil and Masora cratons, or just the Antongil and Masora cratons if the Betsimisaraka Suture exists. The 1.8 Ga rocks identified along the northwestern margin of the Greater Dharwar Craton within the Aravalli Mobile Belt (Roy, 1988;Wiedenbeck and Goswami, 1994;Gupta et al, 1997;Singh et al, 2010; AMB on Fig. 1) could have been the missing proximal source for the Sahantaha and Maha sediments.…”

“…1) could have been the missing proximal source for the Sahantaha and Maha sediments. Limited geochronological data in the Aravalli Mobile Belt indicate granitoid magmatism and felsic volcanism between 2026 and 1723 Ma (Naha and Halyburton, 1974a,b;Choudhary et al, 1984;Naha and Mohanty, 1988;Roy, 1988;Sharma, 1988;Sarkar et al, 1989;Wiedenbeck and Goswami, 1994;Fareeduddin and Kröner, 1998;Kaur et al, 2009;Singh et al, 2010). Palaeoproterozoic mineralisation is indicated by model Pb ages of 1.8 and 1.7 Ga for the Rajpura-Dariba deposits in the Bhilwara Belt and the conformable sediment-hosted sulphide ores at Sawar in the Aravalli Belt respectively (Deb et al, 1989(Deb et al, , 2001).…”

Dynamics, EPMA Th‐U‐Total Pb Monazite Geochronology and Tectonic Implications of Deformational Fabric in the Lower‐Middle Crustal Rocks: A Case Study of Ambaji Granulite, NW India

“…1.3‐1.0 Ga) by some researchers (Bhowmik & Dasgupta, ; Chatterjee et al, ; Dharma Rao et al, ; Meert et al, ; Roy, ) and with Pan‐African orogeny (ca. 0.9–0.5 Ga) by others (de Wall et al, ; Singh et al, ). Our study area is the Ambaji granulite that occurs in the southwestern end of the SDT .…”

“…(a) Proterozoic mobile belts in India, Kaliguman shear zone‐ probable subduction zone in the SDT of the ADMB ; (b) terrane‐map of the ADMB (Gupta et al, ; Singh et al, ); (c) geological map and cross sections along AB, CD, and EF of Ambaji granulite. Profiles illustrate large‐scale F 2 folds developed on horizontal S 1 fabric, shear zones, and faults.…”

SHRIMP geochronology for the 1450Ma Lakhna dyke swarm: Its implication for the presence of Eoarchaean crust in the Bastar Craton and 1450–517Ma depositional age for Purana basin (Khariar), Eastern Indian Peninsula – Reply

“…Hence assuming ca 1000 Ma as the closing age for all the basins is a matter of more debate than agreement. The Vindhyans might have closed by ca 1000 Ma as the Aravalli orogeny in the eastern part culminates during that time (see for reference Singh et al, 2010), while Chhattisgarh and Khariar might have closed during Pan-African orogeny when final amalgamation of Central India and Eastern India took place with Greater India. Hence to constrain the closing age, attempt should be made to correlate the exhumation activity with the contemporary orogeny in the India Peninsula.…”