1-20 OF 186 RESULTS FOR

Toba Caldera

Results shown limited to content with bounding coordinates.
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Journal Article
Journal: Geology
Published: 01 November 1989
Geology (1989) 17 (11): 1040–1043.
...V. L. Sharpton; B. C. Schuraytz Abstract Reports of shock-deformed phenocrysts from the Toba ignimbrite deposits, Sumatra, have prompted considerable debate over whether shock-deformation products are clear evidence of a meteorite impact origin for the Cretaceous/Tertiary (K/T) boundary deposits...
Journal Article
Journal: Geology
Published: 01 January 1987
Geology (1987) 15 (1): 90.
Journal Article
Journal: Geology
Published: 01 January 1987
Geology (1987) 15 (1): 91–92.
Journal Article
Journal: Geology
Published: 01 May 1986
Geology (1986) 14 (5): 380–383.
...Neville L. Carter; Charles B. Officer; Craig A. Chesner; William I. Rose Abstract Plagioclase and biotite phenocrysts in ignimbrites erupted from the Toba caldera, Sumatra, show microstructures and textures indicative of shock stress levels higher than 10 GPa. Strong dynamic deformation has...
Image
Sample locations shown on a DEM of <b>Toba</b> <b>caldera</b> (Sumatra, Indonesia). Rhyol...
Published: 01 February 2020
Figure 1. Sample locations shown on a DEM of Toba caldera (Sumatra, Indonesia). Rhyolite dome exposures outside the study area (inset) were discovered in 2015 by Chesner et al. (2020) . (Color online.)
Image
Vertical seismic sections for three subduction zones.  A : <b>Toba</b> <b>caldera</b>, Su...
Published: 01 December 2012
Fig. 11. Vertical seismic sections for three subduction zones. A : Toba caldera, Sumatra; B : Mount Merapi, Central Java; C : across Central Andes, at 23° S. Projections of earthquakes are shown as asterisks in A and B and as black dots in C . Arrows show possible migration paths
Journal Article
Journal: Geology
Published: 01 March 1991
Geology (1991) 19 (3): 200–203.
... in Malaysia were dated at 68 ±7 ka by the isothermal plateau fission-track technique. These new determinations, in conjunction with previous ages for the two oldest tuffs at Toba, establish the chronology of four eruptive events from the Toba caldera complex over the past 1.2 m.y. Ash-flow tuffs were erupted...
Journal Article
Published: 01 December 2012
Russ. Geol. Geophys. (2012) 53 (12): 1253–1275.
...Fig. 11. Vertical seismic sections for three subduction zones. A : Toba caldera, Sumatra; B : Mount Merapi, Central Java; C : across Central Andes, at 23° S. Projections of earthquakes are shown as asterisks in A and B and as black dots in C . Arrows show possible migration paths...
FIGURES | View All (21)
Journal Article
Published: 01 February 2020
American Mineralogist (2020) 105 (2): 194–226.
...Figure 1. Sample locations shown on a DEM of Toba caldera (Sumatra, Indonesia). Rhyolite dome exposures outside the study area (inset) were discovered in 2015 by Chesner et al. (2020) . (Color online.) ...
FIGURES | View All (18)
Journal Article
Journal: Geology
Published: 01 January 2004
Geology (2004) 32 (1): 61–64.
...Meng-Yang Lee; Chang-Hwa Chen; Kuo-Yen Wei; Yoshiyuki Iizuka; Steven Carey Abstract Little has been known about the earliest Toba eruptive episodes that created the largest-known caldera complex of Quaternary age. Here we report evidence for the eastward dispersal of the oldest Toba tuff in South...
FIGURES
Journal Article
Published: 01 May 1984
Journal of the Geological Society (1984) 141 (3): 487–500.
... mobility of ash-flows around Aniakchak and Fisher calderas, Alaska Geology 1977 5 173 6 Ninkovich D. Shackleton N. J. Abdel-Monem A. A. Obradovich J. D. Izett G. K-Ar age of the Late Pleisotcene eruption of Toba, North Sumatra Nature, London 1978 276 574 7...
Journal Article
Journal: Geology
Published: 01 November 2000
Geology (2000) 28 (11): 1055–1056.
... isotopic events in standard SPECMAP chronology ( Chiu et al., 2000 ). It is well known that there are three major rhyolitic co-ignimbrite eruptions of late Quaternary age in the Toba caldera. The 40 Ar/ 39 Ar age of the Oldest Toba Tuff is 0.84 ±0.03 Ma, that of the Middle Toba Tuff is 0.501 ±0.005 Ma...
FIGURES
Journal Article
Journal: Geology
Published: 01 March 2000
Geology (2000) 28 (3): 275–278.
... ( Chesner et al., 1991 ), the impact of which on global climate has been discussed ( Rampino, 1993 ; Rampino and Self, 1992 ; Kerr, 1996 ). Until now, silicic ash layers and dispersed glass shards from the eruption of the Toba caldera in northern Sumatra have been reported from Malaysia, the northeastern...
FIGURES | View All (5)
Journal Article
Journal: Geology
Published: 01 January 2004
Geology (2004) 32 (1): e54.
.... The article by Lee et al. (2004) suggests that at least one “supereruption” from the Toba caldera, Sumatra, was associated with a climatic warming, rather than a cooling trend. The background to this is that Rampino and Self (1992 , 1993) originally suggested that the supereruption that produced...
Series: Geological Society, London, Special Publications, Geological Society, London, Special Publications
Published: 01 January 2002
DOI: 10.1144/GSL.SP.2002.195.01.25
EISBN: 9781862394438
... (Table 2 ) is very similar to compositional data from the Toba caldera (Sumatra) and from Toba Ash occurrences in the Bay of Bengal and India. Although the glass shards appear to be rather fresh, some hydration during subaqueous alteration must have taken place, considering the contents of c . 5% H 2 O...
Journal Article
Journal: Geology
Published: 01 April 2002
Geology (2002) 30 (4): 347–350.
.... , 1988 , Internally consistent solution models for Fe-Mg-Mn-Ti oxides: Fe-Ti oxides : American Mineralogist , v. 73 p. 714 – 726 . Chesner , C.A. , 1988 , The Toba Tuffs and Caldera Complex, Sumatra, Indonesia : Insights into magma bodies and eruptions [Ph.D. thesis]; Houghton...
FIGURES | View All (5)
Journal Article
Journal: Geology
Published: 01 January 2004
Geology (2004) 32 (1): e54–e55.
... . 167 – 173 . doi:10.1016/0025-3227(91)90214-O Chesner C.A. 1988 , The Toba tuffs and caldera complex, Sumatra, Indonesia: Insights into magma bodies and eruptions [Ph.D. dissertation] ;: Houghton , Michigan...
FIGURES
Series: GSA Memoirs
Published: 01 January 1968
DOI: 10.1130/MEM116-p613
... Resurgent cauldrons are defined as cauldrons (calderas) in which the cauldron block, following subsidence, has been uplifted, usually in the form of a structural dome. Seven of the best known resurgent cauldrons are: Valles, Toba, Creede, San Juan, Silverton, Lake City, and Timber Mountain...
Journal Article
Journal: Geosphere
Published: 01 December 2015
Geosphere (2015) 11 (6): 1902–1947.
...Peter W. Lipman; Matthew J. Zimmerer; William C. McIntosh Abstract Among large ignimbrites, the Bonanza Tuff and its source caldera in the Southern Rocky Mountain volcanic field display diverse depositional and structural features that provide special insights concerning eruptive processes...
FIGURES | View All (24)
Journal Article
Published: 22 May 2019
Mineralogical Magazine (2019) 83 (4): 561–567.
.... ( 1959 ) High-pressure scheelite-structure polymorphs of rare-earth vanadates and arsenates . Zeitschrift für Kristallographie , 101 , 451 – 456 . Takahashi M. ( 1986 ) Anatomy of a middle Miocene Valles-type caldera cluster: geology of the Okueyama volcano-plutonic complex, southwest...
FIGURES | View All (4)