Mineral data (SEM, electron microprobe, Raman spectroscopy) from epithermal hydrothermal alteration of the Miocene Sigri Petrified Forest and host pyroclastic rocks, Western Lesbos, Greece. [PDF]
Data Brief, 2019 Data available from a detailed mineralogical investigation of the Petrified Forest of Lesbos and its host pyroclastic rocks [1] are summarized and a link is provided to the full data at https://data.mendeley.com/datasets/dxwfd32zms/1.
Pe-Piper G +4 more
europepmc +3 more sources
Some Studies of New Zealand Quaternary Pyroclastic Rocks [PDF]
, 2021 <p>The development of volcanic "ash" studies in New Zealand can be traced through three broad periods (Jeune 1970). During the late 19th century the extensive pumice deposits surrounding Lake Taupo received considerable comment (Crawford 1875, Smith 1876 and Cussen 1887).
Barry P. Kohn
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High Potash Volcanic Rocks and Pyroclastic Deposits of Damavand Volcano, Iran, an Example of Intraplate Volcanism [PDF]
Journal of Sciences, Islamic Republic of Iran, 2017 Damavand is a fascinating dormant stratovolcano, 60 km to the ENE of Tehran located in the Alborz Mountains. Damavand volcanic products consist of lava flows and pyroclastic fall, flow and surge deposits from different eruption cycles. The volcanic rocks
M. Mortazavi
doaj +2 more sources
Reservoir Characteristics and Development Model of Subaqueous Pyroclastic Rocks in a Continental Lacustrine Basin: A Case Study of the Chaganhua Subsag in the Changling Fault Depression, Songliao Basin [PDF]
Energies, 2023 Industrial oil and gas eruptions underwater have been found in the pyroclastic rocks of the Huoshiling Formation in the continental lacustrine basin of the Changling fault depression, Songliao Basin.
Yunqian Shi +10 more
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Biogenic filamentous fabrics in green colored moss agates within miocene volcanic rocks in Japan and the associated formation of celadonite. [PDF]
Sci RepMoss agate is a variety of agate characterized by the presence of black, green, or red filamentous fabrics that resemble vegetation such as moss, algae, ferns, and other plant-like forms.
Akahane H +8 more
europepmc +2 more sources
Subsurface geophysical profiling in Awash Melkesa: Insights into lithology and resource potential. [PDF]
PLoS OneIntegrated geophysical investigations were conducted around Awash Melkesa, located 106 km southeast of Addis Ababa, utilizing electrical resistivity, magnetic, radiometric, and seismic refraction methods.
Dessalew EA, Mamo T, Ali MY.
europepmc +2 more sources
A new occurrence of hydrous andradite within pyroclastic rocks of the Sierra De Bahoruco, Dominican Republic. [PDF]
Sci RepWachowiak J +8 more
europepmc +3 more sources
Behaviour of chemical elements during weathering of pyroclastic rocks, Hong Kong
Environment International, 2001 The behaviour of whole-rock major, trace and rare earth elements (REE) during weathering under subtropical conditions is examined along a profile developed over crystal--vitric tuffs with eutaxitic texture. The intensity of weathering within the profile varies erratically, indicating weathering processes operate over different scales.
Malpas, J, DuzgorenAydin, NS, Aydin, A
openaire +6 more sources
Journal of Volcanology and Geothermal Research, 1985 Most of the advances in volcanology during the past 20 years have concerned the recognition, interpretation, and mode of emplacement of pyroclastic rocks. The literature on pyroclastic rocks is widely scattered, in part because the field draws from sedimentology, igneous petrology, physics, and fluid mechanics, and there have been few review papers on ...
G. Camus, P. Boivin
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Geochemical Composition Variations and Tectonic Implications of the Baoligaomiao Formation Volcanic Rocks from the Uliastai Continental Margin, Southeast Central Asian Orogenic Belt [PDF]
Lithosphere, 2023 The Permo-Carboniferous tectonic evolution in the Uliastai continental margin (UCM), north of the southeast central Asian Orogenic Belt, remains controversial. This work examined the geochemical composition of the felsic volcanic rocks from the lower and
Jianzhou Tang, Zhicheng Zhang, Zejia Ji
doaj +1 more source