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Morro Formation

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Journal Article
Journal: Interpretation
Published: 18 April 2016
Interpretation (2016) 4 (2): SE63-SE74.
... tract interbedded with shales (nonreservoir facies) of highstand systems tract, are clearly marked. The coquinas of Morro do Chaves Formation deposited over large platforms situated close to the basin margin. According to Figueiredo (1981) , these platforms would be flanked by fluvial-deltaic and fan...
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Series: AAPG Memoir
Published: 01 January 2000
DOI: 10.1306/M73705C19
EISBN: 9781629810706
... to the sandstones of the Sergi Formation. Petroleum migration through normal faults, which juxtaposed source rocks of the Morro do Barro Formation to sandstones of the Sergi Formation, also played a major role in the filling of these carrier beds. Secondary migration extended considerably into the postrift phase...
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Journal Article
Journal: GSA Bulletin
Published: 01 April 1974
GSA Bulletin (1974) 85 (4): 523-532.
... Formation of Oligocene age.Textural and mineralogic intergradations exist between the Cambria Felsite and the nearby upper Oligocene hypabyssal volcanic necks, plugs, lava domes, and dikes of the Morro Rock–Islay Hill complex; this suggests that the Cambria Felsite represents an effusive equivalent...
Series: GCSSEPM
Published: 01 December 2005
DOI: 10.5724/gcs.05.25.0770
EISBN: 978-0-9836096-5-0
... sequences. More emphasis was given to the rift section, which was subdivided into four, third-order depositional sequences ( Vail et al. , 1991 ). The Morro do Barro Formation comprises thick layers of shales having high total organic carbon (TOC) content (mostly from 2 to 5%) and hydrogen index (HI...
Journal Article
Journal: Economic Geology
Published: 01 October 1991
Economic Geology (1991) 86 (6): 1317-1345.
..., and 16,000 metric tons of copper. The veins are hosted by volcanic rocks of the Cerro Morado (Early Cretaceous) and Las Chilcas (Early to Late Cretaceous) Formations which consist chiefly of breccias, tuffs, and lavas of andesitic composition. The subcircular Morro Hediondo caldera, with a diameter of 14...
Journal Article
Journal: Economic Geology
Published: 01 August 1990
Economic Geology (1990) 85 (5): 904-920.
...T. L. Brenner; N. A. Teixeira; J. A. L. Oliveira; N. D. Franke; J. F. H. Thompson AbstractThe O'Toole orebody is the first significant nickel sulfide deposit of the volcanic peridotitc association to be found in Brazil. It is in the Archean Morro do Ferro greenstone belt in the southwest part...
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Schematic stratigraphy of the <b>Morro</b> do Chaves <b>Formation</b> with interpreted sy...
Published: 18 April 2016
Figure 4. Schematic stratigraphy of the Morro do Chaves Formation with interpreted system tracts along the quarry wall (Figure  3a ), modified from Azambuja Filho et al. (1998) after Kinoshita (2010) . The GPR facies herein interpreted correlates with carbonate-shale-carbonate sequences
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Outcrop face, <b>Morro</b> do Chaves <b>Formation</b>, on the eastern side of the São Seb...
Published: 12 April 2016
Fig. 2. Outcrop face, Morro do Chaves Formation, on the eastern side of the São Sebastião Quarry. Outcrop of approximately 60 m of metre-scale beds of coquinas (intervals of cream and light grey coloured) intercalated with shales (intervals of dark grey and greenish grey). The approximate
Image
Stratigraphic location of Bed 2b in the <b>Morro</b> do Chaves <b>Formation</b>, on the e...
Published: 12 April 2016
Fig. 3. Stratigraphic location of Bed 2b in the Morro do Chaves Formation, on the eastern side of the São Sebastião Quarry. The section is taken from Tavares (2014 ). Note that there is almost no sandstone in this section.
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Details of Bed 2b (from the <b>Morro</b> do Chaves <b>Formation</b>, NE Brazil) showing: ...
Published: 12 April 2016
Fig. 5. Details of Bed 2b (from the Morro do Chaves Formation, NE Brazil) showing: ( a ) the top and base of Bed 2b, the drilling hole locations of horizontal and vertical plug profiles measured within the bed, and the accretionary surfaces shown in close-up in Figure 6 ; and ( b ) the variation
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Porosity–permeability data from the <b>Morro</b> do Chaves <b>Formation</b>. ( a ) Data f...
Published: 12 April 2016
Fig. 7. Porosity–permeability data from the Morro do Chaves Formation. ( a ) Data from samples selected throughout the quarry ( Câmara 2013 ). ( b ) Data collected from Bed 2b and used in this study. Note a similar range of petrophysical properties found in the single bed as found throughout
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Details of Bed 2b of the <b>Morro</b> do Chaves <b>Formation</b>. ( a ) &amp;amp; ( b ) Compl...
Published: 12 April 2016
Fig. 11. Details of Bed 2b of the Morro do Chaves Formation. ( a ) & ( b ) Complete mollusc shells preserved in the upper third of the bed, and ( c ) details of the shale defining the top of Bed 2b.
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Porosity–permeability data for the <b>Morro</b> do Chaves <b>Formation</b> showing defini...
Published: 12 April 2016
Fig. 21 Porosity–permeability data for the Morro do Chaves Formation showing definition of tabular layers and ridges with relatively high porosity (>10%) and high permeability contrast, and the washovers, which in these models will have relatively low porosity (<10%) and permeability
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Measured section of uppermost Palliser <b>Formation</b> (upper <b>Morro</b> Member), Exsh...
Published: 01 December 2010
Fig. 5a. Measured section of uppermost Palliser Formation (upper Morro Member), Exshaw Formation and lower Banff Formation at Crowsnest Pass. In this figure and figures 6 , 9 , 16 , and 18 , stratigraphy and gamma ray curve (counts per second) derived from hand-held scintillometer readings
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Conodont faunas recognized in Big Valley <b>Formation</b>&#x2F;<b>Morro</b> and Costigan membe...
Published: 01 December 2010
Table 2. Conodont faunas recognized in Big Valley Formation/Morro and Costigan members of Palliser Formation through to lower Banff Formation in the surface and subsurface of southern Alberta and southeastern British Columbia.
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Conodont faunas recognized in Big Valley <b>Formation</b>&#x2F;<b>Morro</b> and Costigan membe...
Published: 01 December 2010
Table 2. Conodont faunas recognized in Big Valley Formation/Morro and Costigan members of Palliser Formation through to lower Banff Formation in the surface and subsurface of southern Alberta and southeastern British Columbia.
Journal Article
Published: 01 January 1955