scholarly journals Heavy Mineral Composition and Sources of Himalayan Neogene Sediments Occurring along the Garu-Likabali Road Section, West Siang District, Arunachal Pradesh, India

2020 ◽  
pp. 26-33
Author(s):  
Roshmi Boruah ◽  
Jayanta Jivan Laskar
Keyword(s):  
Sedimentary Rocks ◽  
Heavy Mineral ◽  
Sediment Provenance ◽  
Arunachal Pradesh ◽  
Mineral Analysis ◽  
Sedimentary Sequences ◽  
Road Section ◽  
Neogene Sediments ◽  
Heavy Mineral Analysis ◽  
Opaque Minerals

The Neogene sedimentary sequence of the Arunachal Himalayas is represented by the Dafla, Subansiri and Kimin Formations. Their systematic heavy mineral analysis along the Garu-Likabali Road section indicates that the heavy mineral assemblage is composed of fifteen heavy mineral varieties comprising of andalusite, biotite, chloritoid, chlorite, epidote, garnet, hornblende, hypersthene, kyanite, muscovite, rutile, sphene, staurolite, tourmaline and zircon, besides opaque minerals. The assemblage points towards a complex sediment provenance for the Neogene sedimentary sequences with sediment inputs from pre-existing igneous, metamorphic and sedimentary rocks. The boundary between the Dafla and Subansiri Formation in the region can be demarcated on the basis of disappearance of Hypersthene in the heavy mineral suite of the older Dafla Formation as well as appearance and persistence of staurolite in the same Formation.

Heavy mineral analysis to identify sediment provenance in the Dan River drainage, China

2016 ◽  
Vol 20 (4) ◽  
pp. 449-462 ◽  
Author(s):  
Qingpeng Meng ◽  
Wen Zhang ◽  
Jing Zhang ◽  
Zhaoyu Zhang ◽  
Tairan Wu
Keyword(s):  
Heavy Mineral ◽  
Sediment Provenance ◽  
Mineral Analysis ◽  
River Drainage ◽  
Heavy Mineral Analysis

Varietal heavy mineral analysis of sediment provenance, Lower Cretaceous Scotian Basin, eastern Canada

2011 ◽  
Vol 237 (3-4) ◽  
pp. 150-165 ◽  
Author(s):  
Basilios Tsikouras ◽  
Georgia Pe-Piper ◽  
David J.W. Piper ◽  
Michael Schaffer
Keyword(s):  
Lower Cretaceous ◽  
Heavy Mineral ◽  
Sediment Provenance ◽  
Mineral Analysis ◽  
Eastern Canada ◽  
Heavy Mineral Analysis

scholarly journals Stratigraphic discriminatory potential of heavy mineral analysis for the Neogene sediments of Belgium

2020 ◽  
Vol 23 (3-4) ◽  
Author(s):  
Jasper VERHAEGEN
Keyword(s):  
Mineral Composition ◽  
Visual Inspection ◽  
Heavy Mineral ◽  
Heavy Minerals ◽  
Grain Size Analysis ◽  
Size Analysis ◽  
Mineral Analysis ◽  
The West ◽  
Neogene Sediments ◽  
Heavy Mineral Analysis

The Neogene units of Belgium cannot always be easily distinguished based on visual inspection and correlation across the basin is not straightforward. To aid in the stratigraphic interpretation of units, the discriminatory potential of heavy minerals has been determined. In this study, heavy mineral composition is combined with grain size analysis, providing information on the bulk sediment. Based on heavy mineral composition important interpretations could be made, such as (1) a different provenance between the Dessel Member and the Hageland Diest sand, making it improbable that they were deposited at the same time, (2) the Kasterlee-sensu-Gulinck unit of the eastern Antwerp Campine should be redefined as a lower Mol Formation unit or as a lateral equivalent of the typical Kasterlee Formation to the west, affected strongly by southern continental sediment input, and (3) the Waubach Member in the Ruhr Valley Graben should be split into two separate units, with the upper unit correlated with the Mol Formation and the lower unit, possibly the Inden Formation, correlated with the Diest Formation and Kasterlee Formation. The ‘X’ unit of the Maaseik core is likely a local transitional unit which cannot be directly correlated with a unit in the Campine Basin.

Detrital zircon geochronology and heavy mineral analysis as complementary provenance tools in the presence of extensive weathering, reworking and recycling: the Neogene of the southern North Sea Basin

2021 ◽  
pp. 1-13
Author(s):  
Jasper Verhaegen ◽  
Hilmar von Eynatten ◽  
István Dunkl ◽  
Gert Jan Weltje
Keyword(s):  
North Sea ◽  
Chemical Weathering ◽  
Heavy Mineral ◽  
Mineral Analysis ◽  
Provenance Analysis ◽  
Detrital Zircon Geochronology ◽  
Southern North Sea ◽  
Variable Heavy ◽  
Mineral Data ◽  
Heavy Mineral Analysis

Abstract Heavy mineral analysis is a long-standing and valuable tool for sedimentary provenance analysis. Many studies have indicated that heavy mineral data can also be significantly affected by hydraulic sorting, weathering and reworking or recycling, leading to incomplete or erroneous provenance interpretations if they are used in isolation. By combining zircon U–Pb geochronology with heavy mineral data for the southern North Sea Basin, this study shows that the classic model of sediment mixing between a northern and a southern source throughout the Neogene is more complex. In contrast to the strongly variable heavy mineral composition, the zircon U–Pb age spectra are mostly constant for the studied samples. This provides a strong indication that most zircons had an initial similar northern source, yet the sediment has undergone intense chemical weathering on top of the Brabant Massif and Ardennes in the south. This weathered sediment was later recycled into the southern North Sea Basin through local rivers and the Meuse, leading to a weathered southern heavy mineral signature and a fresh northern heavy mineral signature, yet exhibiting a constant zircon U–Pb age signature. Thus, this study highlights the necessity of combining multiple provenance proxies to correctly account for weathering, reworking and recycling.

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