Characterization of smectite to NH4-illite conversion series in the fossil hydrothermal system of Harghita Bai, East Carpathians, Romania

2012 ◽  
Vol 97 (5-6) ◽  
pp. 962-982 ◽  
Author(s):  
I. Bobos
Keyword(s):  
Hydrothermal System ◽  
East Carpathians

Geomicrobiological exploration and characterization of a novel deep-sea hydrothermal system at the TOTO caldera in the Mariana Volcanic Arc

2006 ◽  
Vol 8 (1) ◽  
pp. 37-49 ◽  
Author(s):  
Tatsunori Nakagawa ◽  
Ken Takai ◽  
Yohey Suzuki ◽  
Hisako Hirayama ◽  
Uta Konno ◽  
...  
Keyword(s):  
Deep Sea ◽  
Hydrothermal System ◽  
Volcanic Arc

Synthesis and Characterization of In2O3 Nanobelts via Hydrothermal Route

2015 ◽  
Vol 1118 ◽  
pp. 43-46
Author(s):  
Guo Dong Liu ◽  
Yu Guang Wang ◽  
Hui Bing Lu ◽  
Yuan Tian
Keyword(s):  
Heat Treatment ◽  
Single Crystals ◽  
Hydrothermal System ◽  
Room Temperature ◽  
Synthesis And Characterization ◽  
Hydrothermal Route ◽  
Pl Spectra

In the hydrothermal system, In (OH)3nanobelts were obtained. After heat-treatment at 300 °C, In2O3single crystals nanobelts were produced, which can keep the morphologies and sizes of precursors. The room temperature PL spectra of as-prepared In2O3nanobelts are also detected. PL peaks of In2O3nanobelts mainly focused at 458 nm (blue).

scholarly journals Geochemical characterization of the Bormio hydrothermal system (central Italian Alps)

2016 ◽  
Vol 41 ◽  
pp. 99-102 ◽  
Author(s):  
Giorgio Volpi ◽  
Federico Riva ◽  
Fredy Alexander Peña Reyes ◽  
Stefano Basiricò ◽  
Daniele Penna
Keyword(s):  
Hydrothermal System ◽  
Italian Alps ◽  
Geochemical Characterization

Characterizing volcanic tremor sources associated with collapses in Halema‘uma‘u Crater at the beginning of the 2018 Kilauea eruption

2021 ◽  
Author(s):  
Jean Soubestre ◽  
Bernard Chouet ◽  
Phillip Dawson
Keyword(s):  
Physical Modeling ◽  
Hydrothermal System ◽  
Lava Lake ◽  
Volcanic Tremor ◽  
The South ◽  
Seismic Stations ◽  
Hydrothermal Reservoir ◽  
Analyze Data

<p>We analyze data from one tiltmeter and twelve broadband seismic stations recorded at the beginning of the 2018 Kilauea eruption, to provide an integrated view of distinct tremor sources that preceded and accompanied this eruption. Studying the beginning of the eruption is challenging because of the diversity and complexity of signals that were recorded during this phase. But such undertaking represents a key aspect for understanding the dynamics of the different processes that took place at the start of the lava lake withdrawal on May 2 and during the twelve major collapses that occurred in Halema‘uma‘u Crater through May 26. The application of a network-based method to automatically detect and locate seismic tremor, combined with physical modeling of the underlying source processes, enables a characterization of these tremor sources in unprecedented detail.</p><p>Our analyses document one tremor source active during the period preceding the eruption, which is attributed to the quasi-steady radiation from a shallow hydrothermal system located at the south-southwest edge of Halema‘uma‘u Crater. These analyses further document two newly described sequences of gliding tremor. The first sequence is attributed to progressive jerky intrusions of a rock piston into a shallow hydrothermal reservoir between May 7 and May 17. The second sequence is attributed to the gradual degassing of a bubbly magma within an east striking dike below Halema‘uma‘u Crater, impacted by repeated roof collapses, and resulting in a quasi to totally degassed magma by May 26.</p>

Sign in / Sign up

Export Citation Format

Share Document