Volcaniclastic Sandstones and Associated Rocks

Pettijohn, F. J.; Potter, Paul Edwin; Siever, Raymond

doi:10.1007/978-1-4612-1066-5_6

Cited by 4 publications

(6 citation statements)

References 44 publications

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“…The observed sandstone characteristics include sorting, packing, compaction, degree of roundness, and mineral composition of this sandstone using the point counting method introduced by Gazzi (1966) and Dickinson (1970) as many as 500 points counting on each thin slice sample. Identification of sandstone classification according to Pettijohn et al (1987) which is based on the percentage of grain components, including quartz, feldspar, and lithic. Determination of rock origin/provenance using a discriminant triangle diagram of quartz, feldspar, and lithic (QFL) from Dickinson et al (1983).…”

Section: Research Methods and Datamentioning

confidence: 99%

“…The detail of the identification of the petrographic components is presented in Table 1. After having plotted based on the percentage of the presence of quartz, feldspar, and lithic minerals using a diagram of Pettijohn et al (1987), the sandstone unit could be characterized into 5 units, namely sublitharenite, lithic arenite, arkose, subarkose, and greywacke (Figure 4).…”

Section: Sandstone Classificationmentioning

confidence: 99%

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Provenance and Paleoclimate Analysis of Sandstone from Meluhu Formation in Kendari, Southeast Sulawesi.

Firdaus¹,

Novitasari

Widiatama³

et al. 2023

jgsm.geologi

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The Meluhu Formation consists of quartz sandstone, red shale, siltstone, and mudstone at the bottom part, and alternating black shale, sandstone, and thin limestone in the upper part. Petrographic components composition can reveal the litho-tectonic setting of a region. The composition of sandstone can be done by determining and counting the proportion of a quartz minerals, feldspar, and rock fragment from thin sections using petrographic analysis. This result can guide to depositional setting and paleoclimates of a region. The Provenance and paleoclimates studies of Meluhu Sandstone are still relatively new. The purpose of this study was to find out the provenance and paleoclimate of sandstone of Meluhu Formation which is exposed in 14 sites along Kendari and adjacent area. The method used to make petrographic observations followed by data processing using the point counting method. The sandstone in this study area was classified into sublitharenite, lithic arenite, arkose, subarkose, and greywacke. The origin of rock was interpreted as located in the recycled orogenic province, interior craton, and undissected arc. The paleoclimate that occurred in the formation of these siliciclastic rocks was arid to humid. Keywords: Meluhu Formation, provenance, paleoclimate, sandstone.

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Section: Research Methods and Datamentioning

confidence: 99%

Section: Sandstone Classificationmentioning

confidence: 99%

Provenance and Paleoclimate Analysis of Sandstone from Meluhu Formation in Kendari, Southeast Sulawesi.

Firdaus¹,

Novitasari

Widiatama³

et al. 2023

jgsm.geologi

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Section: Continental Margin Activity and Heavy Mineral Assemblagementioning

confidence: 99%

“…Rutile can be found in acidic igneous rock and metamorphosed argillaceous sediments of a high-grade schist [13]. Tourmaline is found in granitic pegmatites and acidic igneous sources [13]. Some opaques, zircon, and tourmaline have rounded to subrounded grains, indicating a reworked sedimentary provenance [21,22].…”

Section: Continental Margin Activity and Heavy Mineral Assemblagementioning

confidence: 99%

Heavy Mineral Distribution of Gercus Formation in Shaqlawa and Dokan Area in Northern Iraq

Nasif¹

2023

acad. sci. j.

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From the Gercus Formation, eight samples were taken, ranging from fine grain sandstone to extremely fine grain sandstone. In comparison to other heavy metals, In the heavy metals examination, the opaque mineral had the highest percentage. Transparent minerals, such as metastable and unstable minerals, such as Amphibole, including Hornblend and Glaucophane (Epidote, staurolite, Garnet, Kyanite), reveal metamorphic sources. Mica group minerals, ultrastable minerals (Zircon, Rutile, Tourmaline) (Chiorite,Biotite and Muscovite), Mafic igneous and metamorphic rocks, as well as acidic igneous and reworked sediments, are frequently used to create heavy minerals , according to these accumulations. The ternary diagram of heavy metal stability showed that they are relatively stable because of the impact of the opaque mineral that draws the greatest attention. Both types of sandstone are used in construction.

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“…Shillito and Davies observe that the BVG traces occur on dacitic tuff and argue that the 'claim' of Johnson et al (1994) that the lithology is a sandstone is incorrect, ignoring their clear statements that the sandstone is volcanogenic (i.e., sensu Pettijohn et al, 1987) and a product of redistribution of the tuffs by aqueous sedimentary processes. Shillito and Davies interpret the transition from Diplichnites to Diplopodichnus as behavioral, rather than the result of changes in the property of the substrate, citing Wilson's (2006) observation that the imprints of the successive legs of a living millipede tend to cluster when it slows down.…”

mentioning

confidence: 99%

Death near the shoreline, not life on land: Ordovician arthropod trackways in the Borrowdale Volcanic Group, UK: COMMENT

Briggs

Suthren

Wright

2019

Geology

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Volcaniclastic Sandstones and Associated Rocks

Cited by 4 publications

References 44 publications

Provenance and Paleoclimate Analysis of Sandstone from Meluhu Formation in Kendari, Southeast Sulawesi.

Provenance and Paleoclimate Analysis of Sandstone from Meluhu Formation in Kendari, Southeast Sulawesi.

Heavy Mineral Distribution of Gercus Formation in Shaqlawa and Dokan Area in Northern Iraq

Death near the shoreline, not life on land: Ordovician arthropod trackways in the Borrowdale Volcanic Group, UK: COMMENT

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