A study on textural characteristics, heavy mineral distribution and grain-microtextures of recent sediment in the coastal area between the Sarada and Gosthani rivers, east coast of India

2020 ◽  
Vol 35 (5) ◽  
pp. 484-503 ◽  
Author(s):  
Ali Mohammad ◽  
Parvathaneni Bhanu Murthy ◽  
Edupuganti Naga Dhanamjaya Rao ◽  
Hari Prasad
Keyword(s):  
Coastal Area ◽  
East Coast ◽  
Heavy Mineral ◽  
Recent Sediment ◽  
Mineral Distribution ◽  
East Coast Of India ◽  
Textural Characteristics

Clay mineral distribution in the shelf sediments off the northern part of the east coast of India

1988 ◽  
Vol 8 (2) ◽  
pp. 145-151 ◽  
Author(s):  
V. Purnachandra Rao ◽  
N. Purnachander Reddy ◽  
Ch. Madhusudana Rao
Keyword(s):  
Clay Mineral ◽  
East Coast ◽  
Mineral Distribution ◽  
East Coast Of India ◽  
Shelf Sediments

scholarly journals Heavy Mineral Distribution in the Lokoja and Patti Formations, Southern Bida Basin, Nigeria: Implications for Provenance, Maturity and Transport History

2020 ◽  
Vol 66 (3) ◽  
pp. 185-197
Author(s):  
S. I. Bankole ◽  
A. Akinmosin ◽  
T. Omeru ◽  
H. E. Ibrahim
Keyword(s):  
Source Rock ◽  
Chemical Weathering ◽  
Crystalline Rock ◽  
Heavy Mineral ◽  
Heavy Minerals ◽  
Mineral Component ◽  
Mineral Distribution ◽  
Textural Characteristics

AbstractHeavy mineral component of 13 samples from the Lokoja and Patti Formations, Bida Basin have been studied for their textural characteristics, compositional abundance, maturity and provenance determinations. The suite of heavy minerals encountered is classified as opaque and non-opaque constituents. The non-opaque components include zircon, tourmaline, rutile, garnet, staurolite, epidote, kyanite, titanite, lawsonite, cassiterite, sillimanite, hornblende, hypersthene and andalusite. The assemblage is generally dominated by zircon and tourmaline in the two formations. The constituent heavy minerals identified are dominated by ultra-stable and stable classes, whereas the ZTR indices indicate mineralogical immaturity coupled with textural immaturity of the constituent grains. This suggests the possible dominance of chemical weathering of the source rock. The suites of minerals recovered have been linked to both metamorphic and non-metamorphic crystalline rock origins.

Environmental magnetism evidence for longshore drift distribution of Fe-bearing phases: An example from the Brazilian southeastern coastal region

2021 ◽  
Vol 91 (11) ◽  
pp. 1133-1150
Author(s):  
Vitor E.P. Silveira ◽  
Natália B. dos Santos ◽  
Daniel R. Franco ◽  
Emanuele F. la Terra ◽  
Joshua M. Feinberg ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Coastal Area ◽  
Rio De Janeiro ◽  
High Energy ◽  
Heavy Mineral ◽  
Heavy Minerals ◽  
Northern Coast ◽  
Mineral Distribution ◽  
Longshore Drift ◽  
Paraíba Do Sul River

ABSTRACT The accumulation of heavy minerals along a part of the southeastern Brazilian coast (northern coast of Rio de Janeiro State, Brazil) provides insight into sedimentary provenance and transport by longshore drift. In particular, recent work has focused on heavy minerals as tracers to determine sedimentary sources and transport pathways, indicating a mineral distribution according to the northward and southward coastal transport cells. There is also evidence of heavy-mineral transport by the Paraíba do Sul River. However, research has not been done in this area on the opaque fraction (iron oxides and oxyhydroxides), which are good tracers for provenance and distribution processes. Here we intend to: 1) characterize the spatial variation of the magnetic properties of heavy-mineral contents throughout a coastal area of the Itabapoana and Paraíba do Sul River mouths (state of Rio de Janeiro), 2) evaluate the contribution of coastal dynamics on the mineral distribution along this coastal area, 3) provide contributions on the provenance of iron-bearing minerals. Results indicate that a bimodal pattern was observed for the magnetic remanence of magnetite and hematite near the Paraíba do Sul River. For the northernmost section, goethite exhibits a gradual increase in concentration towards the central part of the study area. Additionally, higher heavy-mineral content is observed at the northern coastal section, which may be related to coastal morphology, which is exposed to high-energy beach processes. It is possible to verify three sampling groups in accordance with their magnetic properties: 1) the “southernmost” and 2) the “northernmost” groups, suggesting a mineral provenance related to the Paraíba do Sul and Itabapoana rivers, respectively, as possible major sources, and 3) another at the intermediate section of the area, possibly linked to the erosion of the Barreiras Formation bluffs. Results also show a correspondence between the variability of magnetic parameters and the main directions of the coastal transport cells.

Heavy mineral studies on late quaternary red sediments of Bhimunipatnam, Andhra Pradesh, East coast of India

2016 ◽  
Vol 88 (5) ◽  
pp. 637-647 ◽  
Author(s):  
K. N. Murali Krishna ◽  
K. S. N. Reddy ◽  
Ch. Ravi Sekhar ◽  
K. Bangaku Naidu ◽  
P. Ganapathi Rao ◽  
...  
Keyword(s):  
Andhra Pradesh ◽  
East Coast ◽  
Late Quaternary ◽  
Heavy Mineral ◽  
East Coast Of India

New Records of Free-Living Marine Nematodes (Nematoda: Enoplida) from East Coast of India

2012 ◽  
Vol 2 (11) ◽  
pp. 517-520
Author(s):  
VIJAYA BHANU, CH VIJAYA BHANU, CH ◽  
◽  
ANNAPURNA, C ANNAPURNA, C ◽  
SRINIVASA RAO, M SRINIVASA RAO, M ◽  
SIVA LAKSHMI, M. V SIVA LAKSHMI, M. V ◽  
...  
Keyword(s):  
East Coast ◽  
New Records ◽  
Marine Nematodes ◽  
Free Living ◽  
East Coast Of India
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