IR Home
→
Earth, Ocean & Atmospheric Sciences
→
School of Earth, Ocean & Atmospheric Sciences
→
Browsing School of Earth, Ocean & Atmospheric Sciences by Author

Browsing School of Earth, Ocean & Atmospheric Sciences by Author "Iyer, S.D."

Now showing items 1-11 of 11

Application of Blue Economy for Polymetallic Nodules from the Central Indian Ocean Basin (Chapter 7)

Amonkar, A.A.; Kalangutkar, N.G.; Iyer, S.D. (Global Blue Economy, Ed. by Md. Nazrul Islam, Steven M. Bartell. 2023; 195-219.)

The Central Indian Ocean Basin (CIOB) is one of the largest and richest polymetallic nodule-bearing areas in the world's oceans. The basin has varied morpho-structures, sediments, and rocks and other materials that are ...
The Blue Economy Paradigm and Seafloor Massive Sulfides along the Indian Ocean Ridge Systems (Chapter 10)

Kalangutkar, N.G.; Amonkar, A.A.; Iyer, S.D. (Global Blue Economy, Ed. by Md. Nazrul Islam, Steven M. Bartell. 2023; 285-308.)

The Indian Ocean with its four major ridge systems collectively forms the Indian Ocean Ridge System (IORS). The hydrothermal fields along these ridges, namely the Carlsberg Ridge (CR), Central Indian Ridge (CIR), South ...
Characterization of ferromanganese crusts from the Central and South West Indian ridges: Evidence for hydrothermal activity

Kalangutkar, N.G.; Kurian, P.J.; Iyer, S.D. (Marine Georesources & Geotechnology. 40(3); 2022; 281-296.)

Ferromanganese (FeMn) crusts with oxides ranging from a thin coating to a maximum of 5 cm thickness were recovered from the South West Indian Ridge (SWIR) and Central Indian Ridge (CIR) segments. The substrate for the ...
Coarse fraction components in a red-clay sedimemt core, Central Indian Ocean Basin: Their occurrence and significance

Iyer, S.D.; Fernandes, G.Q.; Mahender, K. (Journal of the Indian Association of Sedimentologists. 31(1-2); 2012; 123-135.)

Coarse Fractions Components of a sediment core (268 cm from a water depth of 5120 m) collected at 18 degrees S and 80 degrees E from the red clay domain in the Central Indian Ocean Basin (CIOB), comprises mineral grains, ...
Extending the limit of widespread dispersed Toba volcanic glass shards and identification of new in-situ volcanic events in the Central Indian Ocean Basin

Amonkar, A.; Iyer, S.D.; Babu, E.V.S.S.K.; Manju, S. (Journal of Earth System Science. 129(1); 2020; ArticleID_175.)

We report the widespread extent of Toba volcanic glass shards in the Central Indian Ocean Basin. Investigation of four sediment cores (7 degree-17 degree S) revealed several shard-rich horizons (SRH) that provide the first ...
Geochemical heterogeneity along the Vema fracture zone, Indian Ocean: Mixing of melts from the reunion plume and the Central Indian Ridge

Dhawaskar, P.; Ganguly, S.; Mukhopadhyay, R.; Manikyamba, C.; Iyer, S.D.; Karisiddaiah, S.M.; Mahender, K. (Geological Journal. 55(1); 2020; 330-343.)

We present here a scenario of magmatic and tectonic processes associated with the interaction between the Reunion mantle plume and the mantle beneath Central Indian Ridge (CIR) at the Vema Trench (VT) along the Vema Fracture ...
Geology and Characteristics of Metagreywacke and Associated Rocks of Goa Group, India

Fernandes, G.Q.
Petrographical and mineral chemistry evidence to delineate the source/s of the Central Indian Ocean Basin pumices

Kalangutkar, N.G.; Iyer, S.D. (Acta Oceanologica Sinica. 42(5); 2023; 102-116.)

We present data pertaining to mineral assemblages and composition of the Central Indian Ocean Basin (CIOB) pumices. Eight groups of pumices were identified considering the presence of phenocrysts of plagioclase, clinopyroxene, ...
Structure and emplacement of the Coastal Deccan tholeiitic dyke swarm in Goa, on the western Indian rifted margin

Gadgil, R.; Viegas, A.; Iyer, S.D. (Bulletin of Volcanology. 81(6); 2019; ArticleID_35.)

Mafic dyke swarms, when controlled by a regional stress field, are emplaced perpendicular to the minimum principal compressive stress direction. However, mafic dyke swarms may also exploit pre-existing structural fabric ...
Styles and origin of post- and syn-depositional structures of metagreywacke-argillite strata (Goa Group), and formation of Bouma sequence, West Coast of India

Fernandes, G.Q.; Iyer, S.D.; Mahender, K. (Journal of Sedimentary Environments. 7(2); 2022; 237-250.)

Study of the sedimentary structures helps to interpret the depositional process of siliciclastic sediments. Sedimentary structures are classified based on the morphology, formation process, sediment rheology, deformation ...
The origin and tectonic setting of Precambrian Greywacke of Ribandar-Chimbel, Goa, India: Petrological and geochemical evidence

Fernandes, G.Q.; Iyer, S.D.; Mahender, K. (Acta Geologica Sinica: English Edition. 90(6); 2016; 2036-2048.)

The Precambrian greywacke of Ribandar-Chimbel belonging to the Sanvordem Formation of the Goa Group, India, has been studied for petrography and analyzed for major trace elements. The greywacke is characterized by angular ...

Now showing items 1-11 of 11

Search IR

Advanced Search

Browse

All of IR
This Collection
- By Issue Date
- Authors
- Titles
- Subjects

Browsing School of Earth, Ocean & Atmospheric Sciences by Author "Iyer, S.D."

Browsing School of Earth, Ocean & Atmospheric Sciences by Author "Iyer, S.D."

Search IR

Browse

All of IR

This Collection

My Account