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Poladpur Formation

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Series: Geological Society, London, Special Publications
Published: 09 March 2022
DOI: 10.1144/SP518-2020-214
EISBN: 9781786205810
... lava-flow units and four lava-flow groups that have similar major-oxide contents. These groups fit into two of the recognized chemostratigraphic formations, and the transitional Poladpur–Ambenali lavas. In addition, data plots on Ba v. Sr; Ba v. Zr/Nb; Ba/Y v. Zr/Nb; and Ba, Sr, Ba/Y, Zr/Nb v. height...
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The <span class="search-highlight">Poladpur</span>-Bushe contact as seen in the field (A) and in satellite images...
Published: 01 November 2015
Figure 3. The Poladpur-Bushe contact as seen in the field (A) and in satellite images using Google Earth (B–D). Abbreviations, from bottom to top stratigraphically: Bh—Bhimishankar Formation; K—Kandala Formation; B—Bushe Formation; P/B—Poladpur/Bushe terrace; P—Poladpur Formation; A—Ambenali
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The <span class="search-highlight">Poladpur</span>-Bushe contact as seen in the field (A) and in satellite images...
Published: 01 November 2015
Figure 3. The Poladpur-Bushe contact as seen in the field (A) and in satellite images using Google Earth (B–D). Abbreviations, from bottom to top stratigraphically: Bh—Bhimishankar Formation; K—Kandala Formation; B—Bushe Formation; P/B—Poladpur/Bushe terrace; P—Poladpur Formation; A—Ambenali
Image
The <span class="search-highlight">Poladpur</span>-Bushe contact as seen in the field (A) and in satellite images...
Published: 01 November 2015
Figure 3. The Poladpur-Bushe contact as seen in the field (A) and in satellite images using Google Earth (B–D). Abbreviations, from bottom to top stratigraphically: Bh—Bhimishankar Formation; K—Kandala Formation; B—Bushe Formation; P/B—Poladpur/Bushe terrace; P—Poladpur Formation; A—Ambenali
Image
The <span class="search-highlight">Poladpur</span>-Bushe contact as seen in the field (A) and in satellite images...
Published: 01 November 2015
Figure 3. The Poladpur-Bushe contact as seen in the field (A) and in satellite images using Google Earth (B–D). Abbreviations, from bottom to top stratigraphically: Bh—Bhimishankar Formation; K—Kandala Formation; B—Bushe Formation; P/B—Poladpur/Bushe terrace; P—Poladpur Formation; A—Ambenali
Journal Article
Published: 01 March 2006
The Journal of Geology (2006) 114 (2): 155–170.
..., geochemical, and isotopic (Sr and Nd) characteristics is used here to understand the relationship of this dike swarm with the associated lava flows and their position in the established Deccan stratigraphy. Many dikes are compositionally similar to the Khandala and Poladpur formations belonging...
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Map of the minimum (mapped) and maximum (inferred) areal extent of the Ambe...
Published: 01 November 2015
Figure 2. Map of the minimum (mapped) and maximum (inferred) areal extent of the Ambenali and/or Poladpur Formations. Solid circles indicate field locations ( Vanderkluysen et al., 2011 ) in which Ambenali and/or Poladpur have been found; open circles are locations where these formations have
Journal Article
Journal: Geology
Published: 01 September 2010
Geology (2010) 38 (9): 839–842.
..., and rhyolites of the Mumbai volcanics (Salsette Subgroup) between 65 and 60 Ma. South of Mumbai, dikes along the Murud to Mumbai shore section (18°15′N to 19°00′N) intrude flows of the Poladpur Formation, Wai Subgroup ( Fig. 1 ). We used the field relations of the flows and dikes, and their relationship...
FIGURES
Journal Article
Journal: GSA Bulletin
Published: 01 January 2017
GSA Bulletin (2017) 129 (1-2): 253–255.
... al. (2015) lies in the assumptions that (1) the contact between the Lonavala Subgroup (with the Bushe Formation at the top) and Wai Subgroup (with the Poladpur Formation at the base) marks a change in volcanic style and eruptive rates in the Deccan volcanic province, as inferred by Renne et al...
Journal Article
Journal: GSA Bulletin
Published: 01 November 2015
GSA Bulletin (2015) 127 (11-12): 1507–1520.
...Figure 3. The Poladpur-Bushe contact as seen in the field (A) and in satellite images using Google Earth (B–D). Abbreviations, from bottom to top stratigraphically: Bh—Bhimishankar Formation; K—Kandala Formation; B—Bushe Formation; P/B—Poladpur/Bushe terrace; P—Poladpur Formation; A—Ambenali...
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(A) Primordial-mantle–normalized, multielement plot of 85–90 Ma dikes in co...
Published: 01 January 2012
) and Tamatave (TAM) are from Storey et al. (1997) , and the evolved tholeiite (ET) is from Dostal et al. (1992) . The Deccan samples of lower Poladpur (LP), upper Poladpur (UP), and Mahabaleswar (MBR) formation are from Lightfoot and Hawkesworth (1988) , and the sample of Ambenali (AM) formation is from
Series: Geological Society, London, Special Publications
Published: 01 January 2017
DOI: 10.1144/SP445.3
EISBN: 9781786203281
... with field and chemical data support these findings. Further, these lavas are compositionally akin to Bushe, Poladpur, Ambenali and Mahableshwar Formational lavas, and follow the same stratigraphic order as in the Western Ghats. Alternating field (AFD) and thermal demagnetizations (THD) isolate the normal...
Journal Article
Published: 01 January 2008
Journal of the Geological Society (2008) 165 (1): 177–188.
...) and Bilgrami (1999) ( Fig. 1 ). To the south and west, Mitchell & Widdowson (1991) identified predominantly Ambenali and Poladpur-type flows, and to the north, Bilgrami (1999) identified basal flow units with a geochemical signature corresponding to the Bhimashankar, Khandala and Bushe formations...
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(A) (i) Deccan subgroups and <span class="search-highlight">formations</span> ( Chenet et al., 2008 ). Additional...
Published: 01 November 2015
footprint area of the Deccan Traps ( Self et al., 2006 ). (iii) Volumes based on the assumption that the Poladpur, Ambenali, and Mahabaleshwar Formations cover circular footprint areas with radius 600 km, and that all the other formations have circular footprint areas with radius 250 km, as suggested
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(A) (i) Deccan subgroups and <span class="search-highlight">formations</span> ( Chenet et al., 2008 ). Additional...
Published: 01 November 2015
footprint area of the Deccan Traps ( Self et al., 2006 ). (iii) Volumes based on the assumption that the Poladpur, Ambenali, and Mahabaleshwar Formations cover circular footprint areas with radius 600 km, and that all the other formations have circular footprint areas with radius 250 km, as suggested
Journal Article
Published: 01 June 1991
Journal of the Geological Society (1991) 148 (3): 495–505.
... spectrometry and samples have b en classified according to the criteria employed by Devey & Lightfoot 1986 (Table 1). This classification has proved highly successful in identifying the chemical types of the Poladpur, Ambenali, Mahabaleshwar and Panhala Formations, which comprise the upper part of the Deccan...
Journal Article
Journal: Geology
Published: 05 January 2022
Geology (2022) 50 (4): 460–464.
... variance, and sample G trends toward higher values. Zircons from the Poladpur Formation have similar age spectra and eruption age estimates, as do those from the Ambenali Formation. However, ε Hf and Lu/Gd ratios distinguish the zircon populations of each red bole sample, with the exception of samples...
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Geochemical comparison for samples from the SE corner of the Deccan Volcani...
Published: 01 January 2008
; squares, Poladpur Fm. Boxes delimit the chemical boundaries for these formations given by Devey & Lightfoot (1986) .
Journal Article
Journal: GSA Bulletin
Published: 01 January 2017
GSA Bulletin (2017) 129 (1-2): 256.
... the lowermost Wai Subgroup flows because they are only weakly eroded, in contrast to their prominent erosional development within the underlying Lonavala flows. This is observed, for example, in exposures of the Bushe (Lonavala Subgroup) and Poladpur (Wai Subgroup) Formations in the steep cliffs of the Tail...
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Plots of ( top ) Nb/Zr versus Ba/Y, ( middle ) Sr versus Nb/Zr, and ( botto...
Published: 01 March 2006
Figure 3. Plots of ( top ) Nb/Zr versus Ba/Y, ( middle ) Sr versus Nb/Zr, and ( bottom ) TiO 2 versus Zr/Y for the Sangamner dike samples. Fields for relevant southwestern Deccan formations are from Sheth et al. ( 2004 ) and Peng et al. ( 1998 ) and are based on data from Beane et al. ( 1986