Szczegóły publikacji
Opis bibliograficzny
Petrographical analysis and eruption style of the Puca Mauras volcano in Peru / Artur Sosnal, Andrzej GAŁAŚ // W: Knowledge, technology and society : AGH ISC 2018 : monograph / sci. ed. Katarzyna Styszko, Paweł Bogacz. — Kraków : Wydawnictwa AGH, 2020. — Publikacja zawiera materiały z konferencji: AGH International Student Conference: knowledge, technology and society (AGH ISC) : 10–12 October 2018, Kraków. — ISBN: 978-83-66364-51-6. — S. 155–163. — Bibliogr. s. 163, Abstr.
Autorzy (2)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 130530 |
|---|---|
| Data dodania do BaDAP | 2020-10-12 |
| Rok publikacji | 2020 |
| Typ publikacji | fragment monografii pokonferencyjnej |
| Otwarty dostęp |  |
| Wydawca | Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie |
Abstract
This work depicts the results of field studies of the Puca Mauras volcano, made as part of the Polish Scientific Expedition to Peru 2017. The study area is located in the Valley of the Volcanoes in southern Peru. The selection of the Puca Mauras was due to the limited amount of information about this volcanic structure. The main objective was to determine if the Puca Mauras volcano is a monogenetic structure. The research was done by means of the description of the petrographical features of lava. Samples were described with the use of a microscope and 5 of them were selected for ICP geochemical analysis. Examined rocks reveal moderate porosity and fluidal, porphyritic texture. Their minerals composition consists of plagioclase feldspars, amphibole and pyroxene. Morphological differences are bound to small variations of the chemical components of rocks. Rocks were classified as trachyandesites. The lava from the Puca Mauras shows the highest diversity among the samples from all parts of the Valley of the Volcanoes. Studies have lead to assumption of the existence of three main eruption stages. Products extremely rich in SiO2, represent a more evolved magma. Its advanced differentiation, took place closer to the surface. Proof of this is the iron-calcium garnet crystals found in them.