Sociology and synecology of brackish-water foraminifera and thecamoebinids of the Balize Delta, Louisiana

Hiltermann, Heinrich; Haman, Drew

doi:10.1007/bf02536906

Cited by 2 publications

(2 citation statements)

References 3 publications

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“…A more proximal setting can also be ruled out on account of the dissimilarity of the fauna as compared to those of the well-documented sub-environments of the modern Mahakam Delta Plain (van Gorsel, 1988) and Mississippi Delta Plain and active birdfoot (Phleger, 1954(Phleger, , 1955(Phleger, , 1960Hiltermann and Tüxen, 1978;Haman, 1983;Hiltermann and Haman, 1985). These are characterized by the agglutinating foraminifers Ammoastuta, Ammoscalaria, Ammotium, Arenoparrella, Miliammina, Polysaccammina, Tiptotrocha, and Trochamminita. Many of these genera are restricted to the Cenozoic, but Ammoastuta and Miliammina are also regarded as indicators of marginal marine environments in the middle part of the Cretaceous (Luger, 1988).…”

Section: Indications Of a Deltaic Environmentmentioning

confidence: 99%

Benthic Foraminifers and Paleobathymetry of Barrow Group (Berriasian-Valanginian) Deltaic Sequences, Sites 762 and 763, Northwest Shelf, Australia

Jones¹,

Wonders²

1992

Proceedings of the Ocean Drilling Program

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Micropaleontological analysis of the Barrow Group of Sites 762 and 763 has been undertaken with a view to determining the stratigraphic age and depositional environment of the unit. The stratigraphic age of the unit is Berriasian-Valanginian at both sites, in line with palynological findings. The unit is interpreted as having been deposited in a marine deltaic environment. Paleobathymetry at Site 763 (proximal) and Site 762 (distal) is interpreted as having been of the order of 100 m and 200-500 m, respectively. Paleontological evidence for the presence of deep-water submarine fans at Site 763 is lacking. The paleobathymetric significance of the observed variations in the benthic foraminiferal populations at Site 763 remains unclear. 1 von Rad, U., Haq, B. U., et al., 1992. Proc. ODP, Sci. Results, 122: College Station, TX (Ocean Drilling Program).

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Section: Indications Of a Deltaic Environmentmentioning

confidence: 99%

Benthic Foraminifers and Paleobathymetry of Barrow Group (Berriasian-Valanginian) Deltaic Sequences, Sites 762 and 763, Northwest Shelf, Australia

Jones¹,

Wonders²

1992

Proceedings of the Ocean Drilling Program

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“…The palaeoenvironmental interpretation of the micropalaeontological biofacies is based on comparison between ancient and analogous modern biofacies (van Andel & Postma 1954;Phleger 1955Phleger , 1966Saunders 1957Saunders , 1958Todd & Bronnimann 1957;Drooger & Kaasschieter 1958;Lankford 1959;Bermudez 1966;Batjes 1968;Cart-Brown 1972;Pflum & Frerichs 1976;Radford 1981;Haman 1983;Boltovskoy, 1984;Hiltermann & Haman 1985;Culver, 1990;van der Zwaan & Jorissen, 1991;Scott et al 1991;Plaziat 1995;Jones 1996Jones , 1998.…”

Section: Palaeoenvironmental Interpretationmentioning

confidence: 99%

Reservoir biostratigraphy of the Pedernales Field, Venezuela

Jones

Jones²,

King³

et al. 1999

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The geographic and geological settings of the Pedernales Field, and its history from discovery to development, are briefly outlined. Biostratigraphy and palaeoenvironmental interpretation, and their impact on integrated reserw~ir description (IRD) and production geology, are discussed in detail.Historical and modern vintage micropalaeontological data enable the recognition of a number of 'zones' over the reservoir interval. These 'zones' are diachronous, although they do have correlative value when integrated into the framework of isochronous tectonostratigraphic sequence boundaries and flooding surfaces identified on seismic sections and well logs. The 'zones' and their containing sediments can be tentatively calibrated against global standard biozones and hence sequence boundaries and flooding surfaces on the eustatic sea-level cycle chart.Micropalaeontological and palynological data also enable the recognition of a number of biofacies interpreted on the basis of modern analogy as indicating a range of delta-top, delta-front and prodelta environments. The principal reservoir is interpreted as having been deposited in a range of delta-top to delta-front subenvironments, the seal in a range of distal prodelta subenvironments.The ongoing high-resolution biostratigraphic work programme has revealed the existence of a large number of correlatable events over the reservoir interval. Integrated highresolution biostratigraphic, well log and seismic correlation can be achieved both within and between the compartments of the field.High-resolution biostratigraphic/biofacies data demonstrate the existence of a bathymetric gradient at the time the reservoir were being deposited. Gravity gliding along the observed gradient provides a possible mechanism for the locally observed section repetition and enhanced reservoir development, and also for the up-dip trapping mechanism.

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Sociology and synecology of brackish-water foraminifera and thecamoebinids of the Balize Delta, Louisiana

Cited by 2 publications

References 3 publications

Benthic Foraminifers and Paleobathymetry of Barrow Group (Berriasian-Valanginian) Deltaic Sequences, Sites 762 and 763, Northwest Shelf, Australia

Benthic Foraminifers and Paleobathymetry of Barrow Group (Berriasian-Valanginian) Deltaic Sequences, Sites 762 and 763, Northwest Shelf, Australia

Reservoir biostratigraphy of the Pedernales Field, Venezuela

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