The gravitational deformation of volcanoes is largely controlled by ductile layers of substrata. Using numerical finite-element modelling we investigate the role of ductile layer thickness and viscosity on such deformation. To characterise Ž . Ž the deformation we introduce two dimensionless ratios; P volcano radiusrductile layer thickness and P viscosity of a b . ductile substratumrfailure str...

The eastern boundary of the Southern Cascades (Hat Creek Graben region), California, USA, is an extensively faulted volcanic corridor between the Cascade Range and Modoc Plateau. The morphology of the region is a result of plate motions associated with different tectonic provinces, faulting, and recurring volcanic activity, making it an ideal place to study the interrelationship between tectoni...

The design of a novel volcano smoke antenna for UWB indoor applications is presented. The design method is based on a general description for the geometry of UWB monopole antennas which is capable of producing most possible shapes for these antennas. It is also compatible with different optimization methods. In addition to a volcano smoke antenna, this method is used to design two optimized mon...

Introduction: On Mars, long lava flows have been described as the first volcanic stage at the formation of a plains-style volcanic region (e.g. [1]). They have been identified and described on the eastern flanks of the Tharsis Montes (e.g.[2 4]), as well as on Tempe Terra [5] and Syria Planum [6]. This type of volcanism have been described as a consequence of magmatism near larger magmatic prov...

Anthropomorphizing nature is a powerful and pervasive cognitive tendency. The present experiment examined whether existential concerns are implicated in this tendency. Nonreligious and religious Christian participants were asked to assign human characteristics to two natural objects, one benign (a tree), and one potentially threatening (a volcano). Reminders of death reduced the tendency to ant...

We demonstrate the formation of nanoscale volcano-like structures induced by ion-beam irradiation of nanoscale pores in freestanding silicon nitride membranes. Accreted matter is delivered to the volcanoes from micrometer distances along the surface. Volcano formation accompanies nanopore shrinking and depends on geometrical factors and the presence of a conducting layer on the membrane's back ...

We applied the Multifractal Detrended Fluctuation Analysis (MF-DFA), which allows to detect multifractality in nonstationary signals, to the hourly means of local geomagnetic field recorded at Mt. Etna volcano (southern Italy). We studied the signal measured at one geomagnetic station, installed at the summit of volcano, which was characterized by a strong eruption on 27 October 2002. We analyz...

Citation: Ruiz P, Mana S, Gutiérrez A, Alarcón G, Garro J and Soto GJ (2018) Geomorphological Insights on Human-Volcano Interactions and Use of Volcanic Materials in Pre-Hispanic Cultures of Costa Rica through the Holocene. Front. Earth Sci. 6:13. doi: 10.3389/feart.2018.00013 Geomorphological Insights on Human-Volcano Interactions and Use of Volcanic Materials in Pre-Hispanic Cultures of Costa...

Here, we announce the genome sequence of ITALIC! Methanoculleus sediminisS3Fa(T)(DSM 29354(T)), a strict anaerobic methanoarchaeon, which was isolated from sediments near the submarine mud volcano MV4 located offshore in southwestern Taiwan. The 2.49-Mb genome consists of 2,459 predicted genes, 3 rRNAs, 48 tRNAs, and 1 ncRNA. The sequence of this novel strain may provide more information for sp...