What does this research mean for the field?

Sediment texture and heavy mineral assemblages in the Dudhganga River exhibit distinct spatial variations, characterized by downstream fining and enrichment of stable minerals, which are driven by geomorphic setting, hydrodynamic sorting, lithological variability, and tropical weathering. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

Assess grain size distribution, heavy mineral assemblages, and fluvial dynamics along the Dudhganga River to evaluate sediment provenance, transport mechanisms, and depositional environments.

September 3, 2026Journal of the Geological Society of India

Grain Size Characteristics and Heavy Mineral Distribution in Fluvial Sediments of the Dudhganga River across Maharashtra and Karnataka, India

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Authors

PGPooja GhadiGoa University OSOmkar Sutar VSViraj Shelake

Discussion

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Implication

Sedimentological analysis reveals downstream fining and stable heavy mineral enrichment in river sediments, highlighting hydraulic sorting and weathering controls.

Key Points

Assess grain size distribution, heavy mineral assemblages, and fluvial dynamics along the Dudhganga River to evaluate sediment provenance, transport mechanisms, and depositional environments.
Examined 35 surface sediment samples collected along the course of the Dudhganga River across Maharashtra and Karnataka, India.
Performed textural grain size analysis and optical microscopic analysis to identify heavy mineral fractions.
Conducted X-ray diffraction (XRD) analysis on the magnetic fraction to determine iron oxide and titanium mineral compositions.
Grain size analysis demonstrated an overall predominance of sand (53%), followed by mud (33%) and gravel (14%), with upstream reaches enriched in gravel and coarse sand transitioning downstream to finer sediments.
Sorting values indicated very poor to poor sorting across samples, reflecting fluctuating flow dynamics characteristic of monsoon-influenced fluvial systems.
Heavy mineral suites consistently featured tourmaline, zircon, and garnet, with XRD confirming ubiquitous ilmenite, frequent magnetite, widespread goethite, and localized hematite.

Cite This Study

Ghadi et al. (2026) studied this question.

synapsesocial.com/papers/6a9935f3636c6408cfa7ea7c https://doi.org/10.17491/jgsi.2026.174599

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September 3, 2026Journal of the Geological Society of India

Grain Size Characteristics and Heavy Mineral Distribution in Fluvial Sediments of the Dudhganga River across Maharashtra and Karnataka, India

View Full Paper

Ask AI

Bookmark

Authors

PGPooja GhadiGoa University OSOmkar Sutar VSViraj Shelake

Discussion

Member takes

Implication

Sedimentological analysis reveals downstream fining and stable heavy mineral enrichment in river sediments, highlighting hydraulic sorting and weathering controls.

Key Points

Assess grain size distribution, heavy mineral assemblages, and fluvial dynamics along the Dudhganga River to evaluate sediment provenance, transport mechanisms, and depositional environments.
Examined 35 surface sediment samples collected along the course of the Dudhganga River across Maharashtra and Karnataka, India.
Performed textural grain size analysis and optical microscopic analysis to identify heavy mineral fractions.
Conducted X-ray diffraction (XRD) analysis on the magnetic fraction to determine iron oxide and titanium mineral compositions.
Grain size analysis demonstrated an overall predominance of sand (53%), followed by mud (33%) and gravel (14%), with upstream reaches enriched in gravel and coarse sand transitioning downstream to finer sediments.
Sorting values indicated very poor to poor sorting across samples, reflecting fluctuating flow dynamics characteristic of monsoon-influenced fluvial systems.
Heavy mineral suites consistently featured tourmaline, zircon, and garnet, with XRD confirming ubiquitous ilmenite, frequent magnetite, widespread goethite, and localized hematite.

Cite This Study

Ghadi et al. (2026) studied this question.

synapsesocial.com/papers/6a9935f3636c6408cfa7ea7c https://doi.org/10.17491/jgsi.2026.174599

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