Precambrian and early Cambrian palaeobiology of India: Quo Vadis

Шарма, Мукунд; Singh, Varsha; Pandey, Santosh; Ansari, Amir H.; Shukla, Yogmaya; Ahmad, Shamim; Kumar, Yogesh; Singh, Rajesh

doi:10.1007/s43538-021-00029-2

Cited by 7 publications

(2 citation statements)

References 258 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Lineaments are linear or curved features on the Earth's surface that indicate weaker bedrock zones and are used as a secondary aquifer in hard rock locations. They may be seen in remote sensing images [44,45].…”

Section: Lineament Densitymentioning

confidence: 99%

Delineation of Groundwater Potential Zones Using Multi-Criteria Decision Analysis: The Case of Balkh Province, Northern Afghanistan

Popalzai,

Ahmadi,

Rahmani

et al. 2023

Iecg 2022

View full text Add to dashboard Cite

show abstract

Section: Lineament Densitymentioning

confidence: 99%

Delineation of Groundwater Potential Zones Using Multi-Criteria Decision Analysis: The Case of Balkh Province, Northern Afghanistan

Popalzai,

Ahmadi,

Rahmani

et al. 2023

Iecg 2022

View full text Add to dashboard Cite

show abstract

“…One must note, however, that the presence of 1000 Ma detrital zircons in uppermost Vindhyan sandstones denote maximum depositional age and does not, but for the ~1000 Ma "wall", preclude younger ages. Indeed, Sharma et al (2021) repeatedly insist, largely on paleontological evidence, that Vindhyan sedimentation in the Son valley lasted through the Ediacaran. The contradictions and contested interpretations of available reproducible data constitute an ongoing polemic in Indian geology (Hughes, 2017).…”

mentioning

confidence: 99%

A Distant View of Novel Research in Sedimentary Geology with Links to India Since Independence

Basu

2024

Journal of the Geological Society of India

View full text Add to dashboard Cite

Dr. B.P Radhakrishna, the doyen of modern-day geological publications in India, lamented for decades that geologists (sensu lato) of Indian origin or working in India, tended not to publish in Indian journals. A recent echo, "… India has 26 huge sedimentary basins with tremendous resources potential but still why the JGSI is not receiving manuscripts from Indian sedimentologists?" prompts this editorial. The editorial does not provide an answer to the question, which will need research by social scientists with a comprehensive survey. Instead, this editorial dwells on a few selected publications to illustrate the robustness of fundamental and transformative research in sedimentary geology with links to India. Many may not have received adequate attention.At a time when there was no adequate way to determine the mean of azimuthal data, such as in paleocurrent measurements, Sengupta and Rao (1966) and Rao and Sengupta (1972) devised a mathematical treatment of such data to find statistically valid means of cross-bedding azimuths of sandstones in the Kamthi Formation (Gondwana) in Pranhita-Godavari valley. This rigorous data treatment, understandably because of some perceived formidable mathematics, never caught on with field geologists nor with those measuring lineation, plunges of folds, quartz c-axis orientations, etc. However, the work has spawned a full-fledged sub-field in statistics to inquire into circularly distributed data (e.g., Jammalamadaka et al., 2021).In seminal papers, Bhatia established that geochemical compositions of siliciclastic rocks, especially the distribution of trace elements in them, indicated their tectonic provenance (Bhatia, 1983;Bhatia and Crook, 1986). This was at a time when the novel petrographic method of Dickinson and Suczek (1979) dazzlingly dominated the field of sandstone provenance. The geochemical method is, however, superior to the petrographic method principally for two reasons. First, the former determines the tectonic provenance of sandstones and mudstones, but the latter applies only to sandstones. Second, data acquisition for the former is objective although commonly dependent on unseen analysts, but that for the latter is subjective and depends on petrographic skills of the microscopist who is responsible for recognizing pseudomatrix, altered feldspars, chert, etc. and is adept at using the Gazzi-Dickinson method of point counting (Gazzi, 1966;Dickinson, 1970). The insight into implications of geochemical properties of the assemblages of rocks in different tectonic settings is now time-honored, the basis of the protocol for sedimentary provenance investigations. Codified with rigorous statistical constraints Verma

show abstract

Precambrian Microfossils: Indicators of Early Life and Environments on the Earth

Samant

2024

Society of Earth Scientists Series

View full text Add to dashboard Cite

Precambrian and early Cambrian palaeobiology of India: Quo Vadis

Cited by 7 publications

References 258 publications

Delineation of Groundwater Potential Zones Using Multi-Criteria Decision Analysis: The Case of Balkh Province, Northern Afghanistan

Delineation of Groundwater Potential Zones Using Multi-Criteria Decision Analysis: The Case of Balkh Province, Northern Afghanistan

A Distant View of Novel Research in Sedimentary Geology with Links to India Since Independence

Precambrian Microfossils: Indicators of Early Life and Environments on the Earth

Contact Info

Product

Resources

About