Línguas
Páginas
Legal
382000
382000
384000
384000
386000
386000
1628
000
1628
000
1630
000
1630
000
1632
000
1632
000
Ral
Ral
Ral
Ral
Ral
Ral
Ral
Rta
Ral
Rta
Rta
Rta
Rta
Rte
Rte
Rte
Rte
Rte
Rte
RteRts
Rts
Rac
Rac
Rac
Rac
Rac
Rp
Rbd
Rbe
Rba
Rba
Rbb
Rbc
Rmb
Rbf
RbhRbe
Rm
Rma
Rea
ReRcg
Rce1
Rce1
Rce2
Rcm?Rc
Rco
Rcn2
Rcn1 Rc Rcm5
Rcm4
Rcm2
Rcm3
Rcm1Rcl
Rcl
Rch
Rck
RcjRci
Rts
Ral
Ral
Rch
Ral
RalRal
Ral
Ral
Ral
2000
2500
2500
2000
2000
2000
1500
1500
1500
1500
2500
3000
3500
3000
3500
Nima I R
iver
Nima
II Riv
er
San
Isid
ro
(Inte
rmitt
ent S
trea
m)Tambor R
iver
Con
cepc
ión
Riv
er
El Brujo Vent El MonjeVent
La MitadVent
El CalienteVent
Ral
Volcán deSanta María
Summit
INSIVUMEHSeismic station
STG 3
Roa
d (u
npav
ed) t
o
'El M
irado
r El P
alm
ar'
Rta
Rte
RtaRte
Rte
Santiaguito Dome Geologic Map 2006
0 0.5 1 1.5 2 Km
Rüdiger Escobar Wolf, Otoniel Matias Gomez and William I. RoseDepartment of Geological and Mining Engineering and Sciences
Michigan Tech University. June, 2008.
Geologic units
The map follows conventions used by Rose (1972). All deposits of Santiaguito are mapped with prefix R for “recent”. “Ral” corresponds to alluvial deposits; “Rac”corresponds to active river channels, some of which are seasonal or intermittent; “Rta” corresponds to active talus; “Rte” corresponds to eroded talus; “Rts” correspondsto stable talus usually covered with vegetation. Remaining units are all of the dome complex extruded at different times since 1922. The second letter refers to the locationof the source vents: “Rc” El Caliente vent; “Re” La Mitad Vent; “Rm” El Monje Vent and “Rb” El Brujo Vent. The third letter expresses the age progression of units from eachvent, starting with “a” for the oldest, and continuing in alphabetic order to the youngest (e. g. from “a” (Rba) for the oldest (1958) to “h” (Rbh) for the youngest (1975) El Brujovent units). Some older units mapped by Rose can no longer be found at the surface, as they are covered by younger units. These correspond to missing letters (e. g. Rca,Rcb, Rcc, Rcd). Additional numbers at the end of some unit names are used to distinguish between subunits that were emplaced sequentially in time, e. g. subunit Rcn1 wasfollowed by subunit Rcn2. For more details on Santiaguito's growth history and evolution see Rose, 1972; Rose, 1987; Harris et al 2003, and Harris et al 2004.
Tim
e A
D
1922
1939
No
t to
sca
le
1950
1970
1986
2000
2006
Domes and lava flows Alluvial, talus and tephra deposits
El Caliente La MitadEl MonjeEl Brujo Activechannel
Alluvium Talus Tephra
Rco Lava flow2004 - 2006
Rcn2
Rcn1
Lava flow2005
Lava flow2005
Rcm5
Rcm4
Rcm3
Rcm2
Rcm1
Lava flow2004
Lava flow2004
Lava flow2002
Lava flow2002 - 2003
Lava flow2001 - 2002
Rcm? Lava flow2004 (?)
Rcl Lava flow2000
Rck Lava flow1996 - 1999
Rcj Lava flow1993 - 1995
Rci Lava flow1991 - 1992
Rch Lava flow1986 - 1989
Rcg Lava flow (?)1978 - 1984
Rce2 Lava flow1972 - 1973
Rce1 Lava flow1972 - 1973
Rc Lava flow1929- 1934
Rea Lava flow1940's (?)
Re Dome1939 - (?)
Rmb Dome1956 - 1957
Rma Lava flow1950's (?)
Rm Dome1951 - (?)
Rbh Lava flow1975
Rbf Lava flow1975
Rbe Lava flow1973 - 1976
Rbd Lava flow1971 - 1972
Rbc Lava flow1963 - 1966
Rbb Lava flow1959 - 1963
Rba Lava flow1958
Rac
Active channels1922 - 2006
Ral
Alluvial and laharic deposits
1950's - 2006
Rte
Active talus1902 - 2006
Rp
Tephra~1972 - 2006
Rts
Rta
Eroded talus1902 - 2006
Stable talus1902 - 2006
Coordinate system: Guatemala Transverse Mercator (GTM).Projection parameters: False Easting 500000. False Northing 0. Central Meridian -90.5. Scale Factor 0.9998. Latitude of Origin 0. Datum: WGS 1984.Elevation contours: Labeled contours interval 500 m. Intermediate contour interval 50 m. Elevation values in meters above sea level.
Geospatial reference:
Sources of information:Compiled from high resolution (0.5 m pixel) aerial orthophotos 1860-II-14 and 1860-II-19, acquired between November 2005 and April 2006 by the Instituto GeográficoNacional de Guatemala (IGN). Aerial photographs from 2001, 2000, 1991, 1984, 1978, 1977, 1971, 1967, 1959, 1954 and 1947 were used to constrain the ages ofsome units. Maps published by Rose (1972), Rose (1987) and Harris et al (2003) were also used to identify and date units. Unpublished field notes and reports by theauthors were used as well. Elevation data (contours) published by Japanese International Cooperation Agency and IGN (JICA et al 2003), generated by photogrametricmethods of aerial photography acquired in 2001.
References:Harris, A J L, W I Rose, and L P Flynn. 2003. Temporal trends in lava dome extrusion at Santiaguito 1922 - 2000. Bulletin of Volcanology, 65 : 77 - 89.
Harris, A J L, L P Flynn, O Matías, W I Rose, and J Cornejo. 2004. The evolution of an active silicic lava flow field: An ETM+ perspective. Journal of Volcanology and Geothermal Research, 135 : 147 - 168.
Japanese International Development Agency (JICA), Instituto Geográfico Nacional (IGN), Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología(INSIVUMEH) and Secretaría de Planificación y Programación de la Presidencia (SEGEPLAN). 2003. Estudio del establecimiento de los mapas básicos y mapas deamenaza para el sistema de información geográfica de la República de Guatemala. Final report.
Rose, W I. 1972. Santiaguito Volcanic Dome, Guatemala. Geological Society of America Bulletin, v. 83, p. 1413-1434.
Rose, W I. 1987. Volcanic activity at Santiaguito volcano, 1976 - 1984. in: Fink J (ed.) The emplacement of silicic domes and lava flows. Geological Society of Americaspecial paper 212. p. 17 - 25.
Scale:
NOTE: The electronic image file for this map is formatted for printing at a 1 : 7,500 scale for a paper printing size A0 (841 mm X 1189 mm).
Contact information: Comments or questions can be directed to Rüdiger Escobar Wolf. Email address: [email protected]
?
Escobar Wolf, R., Matías Gomez, R.O., and Rose, W.I., 2010, Santiaguito Dome Geologic Map: Geological Society of America Digital Map and Chart Series 8, doi: 10.1130/2010.DMCH008. For permission to copy, contact [email protected]. ©2010 The Geological Society of America. All rights reserved.