Radiocarbon ages, whole-rock geochemical data, and pumice density measurements for the Sacarosa tephra-fall deposit, Misti volcano, southern Peru
April 7, 2023
These data are derived from the Pleistocene Sacarosa tephra-fall deposit (TFD) which erupted from Misti volcano, Arequipa, southern Peru. The deposit represents a major eruption of Misti and these data are used to characterize the deposit. The radiocarbon ages are from units bracketing the Sacarosa TFD and constrain its eruption age. Whole-rock major and trace element concentrations for Sacarosa pumice were determined by X-ray flourescence and inductively coupled plasma mass spectrometry. Density was measured for 89 pumice from six bulk samples of the Sacarosa TFD. These data are provided as part of an effort to characterize the Sacarosa TFD and determine its eruption age.
Citation Information
Publication Year | 2023 |
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Title | Radiocarbon ages, whole-rock geochemical data, and pumice density measurements for the Sacarosa tephra-fall deposit, Misti volcano, southern Peru |
DOI | 10.5066/P9R5WD9B |
Authors | Christopher J Harpel, Juan Jose Cuno, Marie Takach, Marco Rivera, Rigoberto Aguilar, Frank J Tepley, Fredy Garcia |
Product Type | Data Release |
Record Source | USGS Asset Identifier Service (AIS) |
USGS Organization | USGS Volcano Science Center |
Rights | This work is marked with CC0 1.0 Universal |
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The late Pleistocene Sacarosa tephra-fall deposit, Misti Volcano, Arequipa, Peru: Its magma, eruption, and implications for past and future activity
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The late Pleistocene Sacarosa tephra-fall deposit, Misti Volcano, Arequipa, Peru: Its magma, eruption, and implications for past and future activity
Between 38.5 ka cal BP and 32.4 ka cal BP, a dacitic Volcanic Explosivity Index 5 eruption at Misti volcano emplaced the Sacarosa tephra-fall deposit. Its biotite phenocrysts, fine grain size, scarce lithics, and abundant loose crystals characterize the deposit at locations sampled. The eruption’s ~ 800 °C magma rose rapidly from ~ 10 km depth, culminating in a Plinian eruption which reached a mas
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Christopher Harpel, JJ Cuno, Marie K. Takach, M. Rivera, Rigoberto Aguilar, Frank III Tepley, F. Garcia-Arenal