Add to ORKG871-876Glass shards from an ash layer of about 8 Ma old extracted from a core drilled at an ODP-758 site in the Bay of Bengal (BOB) were studied for morphology and chemical composition in order to trace their possible source. Glass shards are of bubble wall, platy and pumice shard type indicating magmatic type of eruption. Electron probe micro analysis (EPMA) of glass shards suggesta rhyolite composition and high K cal-alkaline series. FeO (1.23%) and TiO2 (0.1%) contents of these glass shards are distinctly higher compared to the earlier known Youngest (~74 ka), Middle (~0.54 Ma) and Oldest (~0.84 Ma) Toba Tuffs. Tectonomagmatic, triangular (Ti-Zr-Y) plot and chondrite- normalized REE pattern, are all indicative of volcanic arc source most...
Volcanic ash layers (1-3 cm thick) are abundant in the North Aoba Basin drill sites but less common ...
Pumice clasts, partially and fully coated with ferro-manganese oxide from the Central Indian Ocean B...
Forty-five volcanic ash horizons cored at Sites 642, 643, and 644 on the Vøring Plateau and ranging ...
Abstract: An ash layer occurs between 10-35 cm depth in sediment cores from the Central Indian Ocean...
Three volcanic ash layers were identified in a deep-sea Core IR-GC1 from the north-eastern Indian Oc...
A dispersed volcanic ash layer was recovered at similar to 300 cm depth in a 5.52 m long sediment co...
Two cores from the southern South China Sea contain discrete ash layers that mainly consist of rhyol...
Uncertainty over the identity and age of Toba tephras across peninsular India persists, with radiome...
Uncertainty over the identity and age of Toba tephras across peninsular India persists, with radiome...
Deep Sea sediment core PC-1 from the South Andaman Sea (7 ̊19.85' N; 94 ̊ 39.26' E; in East Andaman ...
Four primary glass populations, well defined by their Sr, Ba and Y concentrations, occur in the Youn...
Four primary glass populations, well defined by their Sr, Ba and Y concentrations, occur in the Youn...
A controversy exists about the origin of ash in the Central Indian Ocean Basin (CIOB). In situ silic...
Volcanic glasses with minor mafic mineral fragments, such as biotite and hornblende, found in deep-s...
none4noToba Tephra layers in cores from the Bengal Fan have been studied to characterize their granu...
Volcanic ash layers (1-3 cm thick) are abundant in the North Aoba Basin drill sites but less common ...
Pumice clasts, partially and fully coated with ferro-manganese oxide from the Central Indian Ocean B...
Forty-five volcanic ash horizons cored at Sites 642, 643, and 644 on the Vøring Plateau and ranging ...
Abstract: An ash layer occurs between 10-35 cm depth in sediment cores from the Central Indian Ocean...
Three volcanic ash layers were identified in a deep-sea Core IR-GC1 from the north-eastern Indian Oc...
A dispersed volcanic ash layer was recovered at similar to 300 cm depth in a 5.52 m long sediment co...
Two cores from the southern South China Sea contain discrete ash layers that mainly consist of rhyol...
Uncertainty over the identity and age of Toba tephras across peninsular India persists, with radiome...
Uncertainty over the identity and age of Toba tephras across peninsular India persists, with radiome...
Deep Sea sediment core PC-1 from the South Andaman Sea (7 ̊19.85' N; 94 ̊ 39.26' E; in East Andaman ...
Four primary glass populations, well defined by their Sr, Ba and Y concentrations, occur in the Youn...
Four primary glass populations, well defined by their Sr, Ba and Y concentrations, occur in the Youn...
A controversy exists about the origin of ash in the Central Indian Ocean Basin (CIOB). In situ silic...
Volcanic glasses with minor mafic mineral fragments, such as biotite and hornblende, found in deep-s...
none4noToba Tephra layers in cores from the Bengal Fan have been studied to characterize their granu...
Volcanic ash layers (1-3 cm thick) are abundant in the North Aoba Basin drill sites but less common ...
Pumice clasts, partially and fully coated with ferro-manganese oxide from the Central Indian Ocean B...
Forty-five volcanic ash horizons cored at Sites 642, 643, and 644 on the Vøring Plateau and ranging ...