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Poladpur Formation

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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
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
Image
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...
FIGURES | View All (11)
Image
(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
... reversals in conjunction 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...
Journal Article
Published: 01 January 2008
Journal of the Geological Society (2008) 165 (1): 177–188.
... corresponding to the Bhimashankar, Khandala and Bushe formations, as well as the more widespread outcrop of Poladpur and Ambenali chemotypes of the Wai Subgroup ( Fig. 1 ). The new geochemical data and map provide details of the stratigraphy and structure of the SE Deccan Volcanic Province. This information...
FIGURES | View All (7)
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...
FIGURES | View All (4)
Image
(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
Image
(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
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...
Image
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
Published: 01 June 1992
Journal of the Geological Society (1992) 149 (3): 473–478.
... on the basis of regional dips) is revised in light of all the above points, could not the samples interpreted as transitional flows between the Ambenali/Poladpur/Mahabaleshwar Formations by Mitchell & Widdowson (their figs 6 & 7 ) be open to alternative interpre- tations? What is the position adopted...
Journal Article
Published: 01 December 1991
Journal of the Geological Society (1991) 148 (6): 979–983.
... of Michard er al. (1986) with precision (la) of *l%. Mg# calculated as in Fig. 1. variable 208Pb/204Pb ratios, perhaps due to irregular distribution of Th. The Pb isotope heterogeneity of the other well-studied, contaminated Deccan formation, the Poladpur, further supports this conclusion. We do not feel...
Image
Zr/Y vs. Nb/Y variation in rocks derived from the Réunion hot spot. Paralle...
Published: 25 May 2001
. ( a ) (south)western areas and ( b ) northeastern areas of the Deccan Traps, India; formations shown in stratigraphic order in main figures. Lavas show a possible hot spot signature, except for those from the Poladpur and Khandala formations that have suffered considerable crustal contamination. See text