Artículo

La versión final de este artículo es de uso interno de la institución.
Consulte el artículo en la página del editor
Consulte la política de Acceso Abierto del editor

Abstract:

The studied volcanic fields are associated with compound flows near the vents that are characterised by a tube network, sky lights, ephemeral vents and tumuli. During discontinuous activity discrete, channel-fed aa flow units in near-vent position often form fanshaped flow fields that resemble vents effused by spatter-fed or clastogenic lava. These flows resulted from (a) reconstitution of fountain-generated spatter around vents by syn-depositional agglutination and coalescence, and (b) syn-eruptive collapse of rapidly grown spatter and scoria. In the studied lava shields three types of tumuli have been identified: (1) lava-coated tumuli, (2) upper-slope tumuli in near-source regions (both dominated in Libya), and (3) flowlobe tumuli in the distal areas (in all studied areas). The widespread flow-lobe tumuli in the studied fields confirm the general agreement of low lava-supply rates. Flow-lobe tumuli are interpreted to have been supplied with magma from tubes that originate in overflow from and through flank fissures connected with the lava lake of shield volcanoes. © 2008 Gebrüder Borntraeger.

Registro:

Documento: Artículo
Título:Morphology of lava tumuli from Mendoza (Argentina), Patagonia (Argentina), and Al-Haruj (Libya)
Autor:Németh, K.; Haller, M.J.; Martin, U.; Risso, C.; Massaferro, G.
Filiación:Volcanic Risk Solutions, Massey University, PO Box 11 222, Palmerston North, New Zealand
Centro Nacional Patagonico, UNPSJB, Avda. Boulevard Brown 3500 (9120), Puerto Madryn, Argentina
Geo-Zentrum an der KTB, Am Bohrturm 2, 92670 Windischeschenbach, Germany
Dept. Geología, FCEN, Ciudad Universitaria, 1428, Buenos Aires, Argentina
Palabras clave:burial (geology); clast; coalescence; geomorphology; lava; Africa; Al Haruj al Aswad; Argentina; Libyan Arab Jamahiriya; Mendoza; North Africa; South America
Año:2008
Volumen:52
Número:2
Página de inicio:181
Página de fin:194
DOI: http://dx.doi.org/10.1127/0372-8854/2008/0052-0181
Título revista:Zeitschrift fur Geomorphologie
Título revista abreviado:Z. Geomorphol.
ISSN:03728854
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03728854_v52_n2_p181_Nemeth

Referencias:

  • BONDRE, N.R., DURAISWAMI, R.A., DOLE, G., (2004) Bull, of Volcanol, 66, pp. 29-45. , Morphology and emplacement of flows from the Deccan Volcanic Province, India
  • CALVARI, S. & PINKERTON, H. (1998): Formation of lava tubes and extensive flow field during the 1991-1993 eruption of Mount Etna. - J. of Geophys. Res.-Solid Earth 103: 27291-27301; CALVARI, S., NERI, M. & PINKERTON, H. (2003): Effusion rate estimations during the 1999 summit eruption on Mount Etna, and growth of two distinct lava flow fields. - J. of Volcanol. and Geothermal Res. 119: 107-123; DUNCAN, A. M., GUEST, J. E., STOFAN, E. R., ANDERSON, S. W., PINKERTON, H. & CALVARI, S. (2004): Development of tumuli in the medial portion of the 1983 as flow-field, Mount Etna, Sicily. -J. of Volcanol. and Geothermal Res. 132: 173-187; DURAISWAMI, R.A., BONDRE, N.R., DOLE, G., PHADNIS, V.M., KALE, V.S., Tumuli and associated features from the western Deccan Volcanic Province (2001) Bull. of Volcanol, 63, pp. 435-442. , India
  • DURAISWAMI, R. A., BONDRE, N., DOLE, G. & PHADNIS, V. (2002): Morphology and structure of flow-lobe tumuli from Pune and Dhule areas, western Deccan Volcanic Province. - J. of the Geol. Soc. of India 60: 57-65; DURAISWAMI, R.A., BONDRE, N.R., DOLE, G., Possible lava tube system in a hummocky lava flow at Daund, western Deccan Volcanic Province, India. - (2004) Proc. of the Indian Academy of Sciences - Earth and Planetary Sciences, 113, pp. 819-829
  • HALLER, M. (2004): Eruption mechanisms in the back-arc Crater Basalt Volcanic Field, Northern Patagonia. - IAVCEI General Assembly, Pucon, Chile, CD-version, sO3b_pt_Ø49.pdf; INBAR, M., RISSO, C., PARICA, C., The morphological development of a young lava flow in the South Western Andes - Neuquen, Argentina (1995) Z. Geomorph. N. F, 39, pp. 479-487
  • INBAR, M., RISSO, C., A morphological and morphometric analysis of a high density cinder cone volcanic field - Payun Matru, south-central Andes, Argentina (2001) Z. Geomorph. N. F, 45, pp. 321-343
  • INBAR, M., RISSO, C., Holocene yardangs in volcanic terrains in the southern Andes, Argentina. - Earth Surf (2001) Proc. and Landf, 26, pp. 657-666
  • JOYCE, B., SUTALO, F., Long basaltic lava flows in southeastern Australia: Mt Rouse and other late-Cenozoic flows of the Newer Volcanic Province (1996) Chapman Conf. on long lava flows, pp. 30-31. , Townsville, Australia
  • KILBURN, C.R.J., Lava flows and flow fields (2000) Encyclopedia of Volcanoes, pp. 291-306. , SIGURDSSON, H, HOUGHTON, B. F, MCNUTT, S. R, RYMER, H. & STIX, J, ed, Academic Press, San Diego
  • MASSAFERRO, G. I., HALLER, M. J., D'ORAZIO, M. & ALRIC, V. I. (2006): Sub-recent volcanism in Northern Patagonia: A tectonomagmatic approach. - J. of Volcanol. and Geothermal Res. 155: 227-243; MATTSSON, H. B. & HOSKULDSSON, A. (2005): Eruption reconstruction, formation of flowlobe tumuli and eruption duration in the 5900 BP Helgafell lava field (Heimaey), south Iceland. - J. of Volcanol. and Geothermal Res. 147: 157-172; NÉMETH, K., SUWESI, K. S., PEREGI, Z., GULÁCSI, Z. & UJSZÁSZI, J. (2003): Plio/Pleistocene flood basalt related scoria and spatter cones, rootless lava flows, and pit craters, Al Haruj Al Abyad, Libya. - Geolines - J. of the Geol. Inst. of AS Czech Republic 15: 98-103; NÉMETH, K., The morphology and origin of wide craters at Al Haruj al Abyad, Libya: Maars and phreatomagmatism in a large intracontinental flood lava field? (2004) Z. Geomorph. N. F, 48, pp. 417-439
  • OLLIER, C.D., Tumuli and lava blisters of Victoria, Australia (1964) Nature, 202, pp. 1284-1285
  • PÉCSKAY, Z., HALLER, M.J., NÉMETH, K., Preliminary K/Ar geochronology of the Crater Basalt Volcanic Field (CBVF), Northern Patagonia, Argentina (2007) Revista de la Asociatión Geológica Argentina, 62, pp. 25-29
  • PEREGI, Z. (2003): Geological map of Libya 1: 250,000, Sheet: Al Haruj al Abyad NG 33-8; Explanatory Booklet. - Geol. Inst, of Hungary and Industrial Res. Centre, Budapest - Tripoli; RISSO, C., NÉMETH, K., COMBINA, A.M., NULLO, F. & DROSINA, M. (2008): The role of phreatomagmatism in a Plio-Pleistocene high-density scoria cone field: Llancanelo Volcanic Field (Mendoza) Argentina. -J. of Volcanol. and Geothermal Res. 169: 61-86; RISSO, C., NÉMETH, K., MARTIN, U., Proposed geotops on Pliocene to Recent pyroclastic cone fields in Mendoza, Argentina (2006) Z. Dt. Geol. Ges, 157, pp. 477-490
  • ROSSI, M.J. & GUDMUNDSSON, A. (1996): The morphology and formation of flow-lobe tumuli on Icelandic shield volcanoes. -J. of Volcanol. and Geothermal Res. 72: 291-308; SELF, S., KESZTHELYI, L., THORDARSON, T., The importance of pahoehoe. - Ann (1998) Review of Earth and Planet. Sciences, 26, pp. 81-110
  • STEPHENSON, P.J., GRIFFIN, T.J., Some long basaltic lava flows in North Queensland (1976) Volcanism in Australia, pp. 44-51. , R.W.JOHNSON ed, Elsevier, Amsterdam, The Netherlands
  • STEPHENSON, P.J., BURCH-JOHNSON, A.T., STANTON, D., Long lava flows in North Queensland: Context, characteristics, emplacement (1996) Chapman conference on long lava flows, pp. 86-87. , Townsville, Australia
  • STEPHENSON, P.J., BURCH-JOHNSTON, A. T., STANTON, D. & WHITEHEAD, P. W. (1998): Three long lava flows in north Queensland. - J. of Geophys. Res.-Solid Earth 103: 27359-27370; THORDARSON, T. & SELF, S. (1998): The Roza Member, Columbia River Basalt Group: A gigantic pahoehoe lava flow field formed by endogenous processes? -J. of Geophys. Res.-Solid Earth 103: 27411-27445; WALKER, G.P.L., Structure, and origin by injection of lava under surface crust, of tumuli, lava rises, lava-rise pits, and lava-inflation clefts in Hawaii (1991) Bull. of Volcanol, 53, pp. 546-558
  • WALKER, G.P.L., Basaltic-volcano systems (1993) Magmatic Processes and Plate Tectonics, 76, pp. 3-38. , PRICHARD, H. M, ALABASTER, T, HARRIS, N. B. W & NEARLY, C. R, ed
  • WALKER, G.P.L., Basaltic volcanoes and volcanic systems (2000) Encyclopedia of Volcanoes, pp. 283-290. , SIGURDSSON, H, HOUGHTON, B. F, MCNUTT, S. R, RYMER, H. & STIX, J, ed, Academic Press, San Diego
  • WILMOTH, R. A. & WALKER, G. P. L. (1993): P-Type and S-Type pahoehoe - a study of vesicle distribution patterns in Hawaiian lava flows. - J. of Volcanol. and Geothermal Res. 55: 129-142

Citas:

---------- APA ----------
Németh, K., Haller, M.J., Martin, U., Risso, C. & Massaferro, G. (2008) . Morphology of lava tumuli from Mendoza (Argentina), Patagonia (Argentina), and Al-Haruj (Libya). Zeitschrift fur Geomorphologie, 52(2), 181-194.
http://dx.doi.org/10.1127/0372-8854/2008/0052-0181
---------- CHICAGO ----------
Németh, K., Haller, M.J., Martin, U., Risso, C., Massaferro, G. "Morphology of lava tumuli from Mendoza (Argentina), Patagonia (Argentina), and Al-Haruj (Libya)" . Zeitschrift fur Geomorphologie 52, no. 2 (2008) : 181-194.
http://dx.doi.org/10.1127/0372-8854/2008/0052-0181
---------- MLA ----------
Németh, K., Haller, M.J., Martin, U., Risso, C., Massaferro, G. "Morphology of lava tumuli from Mendoza (Argentina), Patagonia (Argentina), and Al-Haruj (Libya)" . Zeitschrift fur Geomorphologie, vol. 52, no. 2, 2008, pp. 181-194.
http://dx.doi.org/10.1127/0372-8854/2008/0052-0181
---------- VANCOUVER ----------
Németh, K., Haller, M.J., Martin, U., Risso, C., Massaferro, G. Morphology of lava tumuli from Mendoza (Argentina), Patagonia (Argentina), and Al-Haruj (Libya). Z. Geomorphol. 2008;52(2):181-194.
http://dx.doi.org/10.1127/0372-8854/2008/0052-0181