Mineral Chemistry and Thermobarometry  of the Volcanic Rocks in Torud, Iran

Hosseini, Elham Shah; Ardalan, Afshin Ashja; Emami, Mohammad Hashem; Razavi, Mohammad Hossein

doi:10.4236/ojg.2014.49033

Cited by 3 publications

(2 citation statements)

References 30 publications

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“…Accurate identi cation is achieved using these approaches, with a margin of error that is greater than 5% for REEs and 10% for the remaining trace elements (Hosseini et al 2014). The zircon grains of each sample were separated from 80 mesh and whole rock powder by panning, magnetic separations, and hand-picking techniques.…”

Section: Samples Collection and Analytical Techniquementioning

confidence: 99%

U–Pb zircon geochronology and geochemistry of Luk Ulo River boulders belong to Late Cretaceous-Paleocene metapsammite and metagranite of Luk Ulo Karangsambung, Central Java, Indonesia

Aminuddin

Shuaib

Akhtar

et al. 2023

Environ Sci Pollut Res

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The rock formation of late Cretaceous-Paleocene granite, metapsammite, and metagranite found across Luk Ulo Complex indicated boulders with diameter of approximately one meter and rounded shape along Luk Ulo River, Indonesia. However, less research found on geochronology and geochemistry has been conducted in study area, and such rocks require comprehensive understanding of magmatism and tectonic environment of Central Java, Indonesia. Therefore, the main objective of this study is to address the geochronological and geochemical age histories across Central Java, Indonesia using U-Pb zircon dating technique. Generally, most common types of rocks were observed which composed of hornblende and garnet-bearing granite, metapsammite, and metagranite. The geochemical study showed that protolith of rocks with hornblende was identi ed as Cordilleran granitoid (I-type), which originated from magmatic arc with basaltic differentiation. Further, protolith of rocks containing garnet was categorized as Caledonian granitoid (S-type), which is caused by post-collisional orogeny. The cluster observations of magmatic zircons reveal their magmatic ages, which vary from 67.00 + 1.2 to 69.10 + 0.91 Ma (late Cretaceous), whereas ages of inherited zircons ranged from 100 + 5 to 437 + 13 Ma (early Cretaceous to Silurian). Estimated periods of partial melting were found between 100-5 Ma and 118-4 Ma (early Cretaceous). Comparing the zircon ages of Luk Ulo with the zircon ages from the Sundaland regions reveals that the age distribution patterns are incredibly similar; the peak ages dispersed between the Cretaceous and Triassic periods, as well as Sundaland region was the source of the materials.

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Section: Samples Collection and Analytical Techniquementioning

confidence: 99%

U–Pb zircon geochronology and geochemistry of Luk Ulo River boulders belong to Late Cretaceous-Paleocene metapsammite and metagranite of Luk Ulo Karangsambung, Central Java, Indonesia

Aminuddin

Shuaib

Akhtar

et al. 2023

Environ Sci Pollut Res

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“…if there is danger, it is for everyone, not only me'. 103 She dismissed her male colleague's attempt to place her under his protection. Indeed, she claims his protection to be a myth, and rape as a mutual concern.…”

Section: Politics Of Local Masculinities: Unmaking the Protector Idenmentioning

confidence: 99%

Reconsidering Categories of Analysis: Possibilities for Feminist Studies of Conflict

Saeidi¹

2013

Gender History Across Epistemologies

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U-Pb Zircon geochronology and geochemistry of Late Cretaceous-Paleocene metapsammite and metagranite of Luk Ulo Karangsambung, Central Java, Indonesia

Aminuddin

Shuaib

Akhtar

et al. 2023

Preprint

View full text Add to dashboard Cite

The rock formation of late Cretaceous–Paleocene granite, metapsammite, and metagranite found across Luk Ulo Complex indicated boulders with diameter of approximately one meter and rounded shape along Luk Ulo River, Indonesia. However, less research found on geochronology and geochemistry has been conducted in study area, and such rocks require comprehensive understanding of magmatism and tectonic environment of Central Java, Indonesia. Therefore, the main objective of this study is to address the geochronological and geochemical age histories across Central Java, Indonesia using U-Pb zircon dating technique. Generally, most common types of rocks were observed which composed of hornblende and garnet-bearing granite, metapsammite, and metagranite. The geochemical study showed that protolith of rocks with hornblende was identified as Cordilleran granitoid (I-type), which originated from magmatic arc with basaltic differentiation. Further, protolith of rocks containing garnet was categorized as Caledonian granitoid (S-type), which is caused by post-collisional orogeny. The cluster observations of magmatic zircons reveal their magmatic ages, which vary from 67.00 + 1.2 to 69.10 + 0.91 Ma (late Cretaceous), whereas ages of inherited zircons ranged from 100 + 5 to 437 + 13 Ma (early Cretaceous to Silurian). Estimated periods of partial melting were found between 100–5 Ma and 118–4 Ma (early Cretaceous). Comparing the zircon ages of Luk Ulo with the zircon ages from the Sundaland regions reveals that the age distribution patterns are incredibly similar; the peak ages dispersed between the Cretaceous and Triassic periods, as well as Sundaland region was the source of the materials.

show abstract

Mineral Chemistry and Thermobarometry of the Volcanic Rocks in Torud, Iran

Cited by 3 publications

References 30 publications

U–Pb zircon geochronology and geochemistry of Luk Ulo River boulders belong to Late Cretaceous-Paleocene metapsammite and metagranite of Luk Ulo Karangsambung, Central Java, Indonesia

U–Pb zircon geochronology and geochemistry of Luk Ulo River boulders belong to Late Cretaceous-Paleocene metapsammite and metagranite of Luk Ulo Karangsambung, Central Java, Indonesia

Reconsidering Categories of Analysis: Possibilities for Feminist Studies of Conflict

U-Pb Zircon geochronology and geochemistry of Late Cretaceous-Paleocene metapsammite and metagranite of Luk Ulo Karangsambung, Central Java, Indonesia

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