scholarly journals Long submarine lava flows: Observations and results from numerical modeling

1998 ◽  
Vol 103 (B11) ◽  
pp. 27517-27531 ◽  
Author(s):  
Tracy K. P. Gregg ◽  
Daniel J. Fornari
Keyword(s):  
Numerical Modeling ◽  
Lava Flows ◽  
Submarine Lava

Constraints on the formation of submarine lava flows from numerical model calculations

1999 ◽  
Vol 92 (3-4) ◽  
pp. 215-229 ◽  
Author(s):  
F. Klingelhöfer ◽  
M. Hort ◽  
H.-J. Kümpel ◽  
H.-U. Schmincke
Keyword(s):  
Numerical Model ◽  
Lava Flows ◽  
Model Calculations ◽  
Submarine Lava

Voluminous submarine lava flows from Hawaiian volcanoes

Geology ◽  
1988 ◽  
Vol 16 (5) ◽  
pp. 400 ◽  
Author(s):  
Robin T. Holcomb ◽  
James G. Moore ◽  
Peter W. Lipman ◽  
Robert H. Belderson
Keyword(s):  
Lava Flows ◽  
Submarine Lava

Underwater studies of recent lava flows around São Miguel (Azores)

1975 ◽  
Vol 112 (3) ◽  
pp. 309-314 ◽  
Author(s):  
N. B. Mapstone ◽  
A. P. Rood ◽  
N. G. Jackson
Keyword(s):  
Sea Level ◽  
Wave Action ◽  
Lava Flows ◽  
Longshore Currents ◽  
Submarine Lava ◽  
Arch Structures

SummaryAn underwater study of recent submarine lava flows on São Miguel (Azores) suggests that the island has subsided by as much as 9 m relative to sea level over the last few thousand years. A spectacular system of overlapping lava arch structures occur immediately below the ancient sea level, and they are thought to have formed when tongues of molten lava flowed over a steep autochthonous submarine scree slope. The scree was subsequently removed by strong longshore currents and wave action.

Analyzing the 2011 eruption of Nabro volcano using satellite remote sensing and numerical modeling of lava flows

2020 ◽  
Author(s):  
Ciro Del Negro ◽  
Gaetana Ganci ◽  
Annalisa Cappello ◽  
Giuseppe Bilotta ◽  
Claudia Corradino
Keyword(s):  
Remote Sensing ◽  
Numerical Modeling ◽  
Lava Flow ◽  
Satellite Remote Sensing ◽  
Discharge Rate ◽  
Lava Flows ◽  
Maximum Speed ◽  
High Temporal Resolution ◽  
Monitoring Networks ◽  
Maximum Extent

<p>The 2011 eruption of Nabro volcano, situated at the southeast end of the Danakil Alps in Eritrea, has been the first historical on record and one of the largest eruptions of the last decade. Due to the remote location of the Nabro volcano and the lack of data from ground monitoring networks at the time of the eruption, satellite remote sensing gives the first global view of the event, providing insights on its evolution over time. Here we used numerical modeling and high spatial resolution satellite data (i.e. EO-ALI, ASTER, PlanetScope) to track the path and velocity of lava flows and to reconstruct the pre- and post-eruptive topographies in order to quantify the total bulk volume emitted. High temporal resolution images (i.e. SEVIRI and MODIS) were exploited to estimate the time-averaged discharge rate (TADR) and assess the dense rock equivalent (DRE) lava volumes constrained by the topographic approach. Finally, satellite-derived parameters were used as input and validation tags for the numerical modelling of lava flow scenarios, offering further insights into the eruption and emplacement dynamics. We found that the total volume of deposits, calculated from differences of digital elevation models (DEMs), is about 580 × 10<sup>6</sup> m<sup>3</sup>, of which about 336 × 10<sup>6</sup> m<sup>3</sup> is the volume of the main lava flow that advanced eastward beyond the caldera. Multi-spectral satellite observations indicate that the main lava flow had reached its maximum extent (∼16 km) within about 4 days of the eruption onset on midnight 12 June. Lava flow simulations driven by satellite-derived parameters allow building an understanding of the advance rate and maximum extent of the main lava flow showing that it is likely to have reached 10.5 km in one day with a maximum speed of ~0.44 km/h.</p>

scholarly journals Three‐Dimensional Seismic Imaging of Ancient Submarine Lava Flows: An Example From the Southern Australian Margin

2017 ◽  
Vol 18 (11) ◽  
pp. 3840-3853 ◽  
Author(s):  
P. Reynolds ◽  
S. Holford ◽  
N. Schofield ◽  
A. Ross
Keyword(s):  
Seismic Imaging ◽  
Three Dimensional ◽  
Lava Flows ◽  
Submarine Lava

Nouvelles donnees sur les diabases-porphyrites de la region de Sangineto (Calabre)

1961 ◽  
Vol S7-III (4) ◽  
pp. 370-378 ◽  
Author(s):  
Jean Claude Bousquet
Keyword(s):  
Volcanic Rocks ◽  
Pillow Lava ◽  
Lava Flows ◽  
Submarine Lava

Abstract The northernmost outcrop of the diabase-porphyrite complex of Calabria, Italy, is in the Sangineto zone, long recognized as exceptionally complex. Results of studies are reported whose particular purpose was to define the upper and lower boundaries of the series of diabases and porphyrites, to describe the interrelationships of the varieties within the series, and to ascertain the relationships of these rocks to the nonvolcanic country rocks. Pillow lava structures recognized in many places suggest that the volcanic rocks are ancient submarine lava flows. Overlying limestones contain layers of breccia in which Tithinian (Jurassic) fragments have been identified, thus refuting the Triassic age previously assigned to them in the literature.

scholarly journals Lava penetrating water: Submarine lava flows around the coasts of Pico Island, Azores

2008 ◽  
Vol 9 (3) ◽  
pp. n/a-n/a ◽  
Author(s):  
Neil C. Mitchell ◽  
Christoph Beier ◽  
Paul L. Rosin ◽  
Rui Quartau ◽  
Fernando Tempera
Keyword(s):  
Lava Flows ◽  
Submarine Lava

scholarly journals Lava-seawater interactions at shallow-water submarine lava flows

1991 ◽  
Vol 18 (9) ◽  
pp. 1731-1734 ◽  
Author(s):  
Francis J. Sansone ◽  
Joseph A. Resing ◽  
Gordon W. Tribble ◽  
Peter N. Sedwick ◽  
Kevin M. Kelly ◽  
...  
Keyword(s):  
Shallow Water ◽  
Lava Flows ◽  
Submarine Lava

Numerical modeling of fluid flow with rafts: An application to lava flows

2016 ◽  
Vol 97 ◽  
pp. 31-41 ◽  
Author(s):  
Igor Tsepelev ◽  
Alik Ismail-Zadeh ◽  
Oleg Melnik ◽  
Alexander Korotkii
Keyword(s):  
Numerical Modeling ◽  
Fluid Flow ◽  
Lava Flows
Sign in / Sign up

Export Citation Format

Share Document