Results 21 to 30 of about 21,945 (225)

Morphological and mineralogical characterization of speleothems from the Chimalacatepec lava tube system, Central Mexico

International Journal of Speleology, 2016
Siliceous, opal-A speleothems of the Chimalacatepec lava tube system in central Mexico are characterized here for the first time. Morphologically, they can be classified into cylindrical and planar, and display a wide array of shapes, inner textures, and
Rafael López-Martínez, Ricardo Barragán, Hugo Beraldi-Campesi, Tomáš Lánczos, Juan R. Vidal-Romaní, Roman Aubrecht, Juan P. Bernal Uruchurtu, Teresa Pi Puig, Ramón Espinasa-Pereña   +8 more
doaj   +1 more source

Keragaman kelelawar (Chiroptera) dan karakteristik lokasi bertenggernya di ekosistem gua lava, Gua Lawa dan Lorong Kereta

Jurnal Biologi Udayana, 2023
Kelelawar menempati berbagai habitat sebagai lokasi bertenggernya, salah satu lokasi potensial adalah gua lava (lava tube). Gua merupakan ekosistem yang memiliki faktor lingkungan spesifik namun rentan terhadap kerusakan akibat aktivitas manusia ...
Sufraha Islamia, Dwinda Mariska Putri
doaj   +1 more source

Cross-section extraction and model reconstruction of lava tube based on L1-medial skeleton

International Journal of Applied Earth Observations and Geoinformation
Lunar lava tube caves, due to their unique geographical structure and potential as shelters, have repeatedly emerged as prime candidates or priority areas during discussions on lunar base site selection.
Qiao Yang, Zhizhong Kang, Teng Hu, Zhen Cao, Chenming Ye, Dongming Liu, Haoxiang Hu, Shuai Shao   +7 more
doaj   +1 more source

Satellite and Ground Remote Sensing Techniques to Trace the Hidden Growth of a Lava Flow Field: The 2014–2015 Effusive Eruption at Fogo Volcano (Cape Verde)

Remote Sensing, 2018
Fogo volcano erupted in 2014–2015 producing an extensive lava flow field in the summit caldera that destroyed two villages, Portela and Bangaeira.
Sonia Calvari, Gaetana Ganci, Sónia Silva Victória, Pedro A. Hernandez, Nemesio M. Perez, José Barrancos, Vera Alfama, Samara Dionis, Jeremias Cabral, Nadir Cardoso, Paulo Fernandes, Gladys Melian, José M. Pereira, Hélio Semedo, Germán Padilla, Fátima Rodriguez   +15 more
doaj   +1 more source

Complex lava tube networks developed within the 1792–93 lava flow field on Mount Etna (Italy): insights for hazard assessment

Frontiers in Earth Science
Lava tubes are powerful heat insulators, allowing lava to practically keep the initial temperature and travel longer distances than when freely flowing on the ground surface.
S. Calvari, G. Giudice, R. Maugeri, D. Messina, D. Messina, D. Morgavi, L. Miraglia, A. La Spina, L. Spampinato   +8 more
doaj   +1 more source

The genesis of a lava cave in the Deccan Volcanic Province (Maharashtra, India)

International Journal of Speleology, 2016
Lava tubes and channels forming lava distributaries have been recognized from different parts of western Deccan Volcanic Province (DVP). Openings of smaller dimension have been documented from the pāhoehoe flows around Pune, in the western DVP.
Nikhil R. Pawar, Amod H. Katikar, Sudha Vaddadi, Sumitra H. Shinde, Sharad N. Rajaguru, Sachin V. Joshi, Sanjay P. Eksambekar   +6 more
doaj   +1 more source

Evidence for an additional population of the cave-dwelling squat lobster Munidopsis polymorpha in Lanzarote (Canary Islands): implications for management and conservation

Journal of Limnology
The endangered anchialine squat lobster Munidopsis polymorpha is restricted to northern Lanzarote. To understand genetic isolation and conservation risks, we genotyped 26 individuals at eight microsatellite loci from four sites in La Corona lava tube ...
Alejandro Martinez, Guillermo García-Gómez, Álvaro García-Herrero, Enrique Domínguez, Carola D. Jorge, Joaquín Vierna, Neus Mari-Mena, Antón Vizcaíno, Elena Mateo, David Brankovits, Ester M. Eckert, Diego Fontaneto, Rosa Fernández, Leopoldo Moro   +13 more
doaj   +1 more source

Preliminary study: The Birth of Nagaloka [PDF]

SHS Web of Conferences
Research on dormant and extinct volcanoes remains limited compared to studies on active systems, despite their potential hazards and significance in reconstructing landscape evolution.
Putu Eka Suryana I Gede, Lavigne Franck, Bagus Oka Agastya Ida, Dwipayana Made, Made Yudi Antara I Gede, Aditya Akbar Saputra Kadek, Galan Adyaksa Muhammad, Agus Wirasana I Ketut, Dana Juliyantara Komang   +8 more
doaj   +1 more source

Karst Cave as Terrestrial Simulation Platform to Test and Design Human Base in Lunar Lava Tube

Space: Science & Technology, 2022
Developing efficient approaches to building a suitable environment for humans on the moon play a key role in future long-term sustainable lunar exploration activities, which has motivated many countries to propose diverse plans to build a lunar base. The
Jinghang Ding, Gengxin Xie, Linli Guo, Xin Xiong, Ya Han, Xi Wang   +5 more
doaj   +1 more source

Mechanisms of formation of lava tubes [PDF]

Journal of Geophysical Research: Solid Earth, 2008
We propose a model to describe lava tube formation, considering lava as a Newtonian fluid moving downslope in a rectangular channel. We obtain flow velocity using an analytical steady‐state solution of the Navier‐Stokes equation. Shear stress is also calculated from velocity for a Newtonian incompressible and isotropic fluid. A 2‐D model with heat flux
A. Valerio, A. Tallarico, DRAGONI, MICHELE   +2 more
openaire   +3 more sources