Tidal-Flat Facies in Carbonate Cycles, Pillara Formation (Devonian), Canning Basin, Western Australia

Read, J. Fred

doi:10.1007/978-3-642-88494-8_29

Cited by 18 publications

(30 citation statements)

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“…Recessive units are likely to be carbonate mudstones or wackestones based on local exposure and diamond drillcore from other platform areas. Similar facies have been described from other platform areas ( Read 1973a, b; Cooper et al 1984 ; Brownlaw et al 1996 ). By comparison, the Hull Range facies are interpreted as dominantly subtidal, representing deeper low‐energy to shallower higher energy conditions, with fenestral limestone representing the shallowest, possibly lower intertidal facies.…”

Section: Stratigraphysupporting

confidence: 83%

“…Previous studies of the Lennard Shelf platforms have emphasised the upward‐shallowing character of the cycles as evidence of relatively rapid deepening followed by slower filling of accommodation ( Read 1973a, b; Benn 1984; Hall 1984; Brownlaw et al 1996 ). Controls on cycle formation have been generally interpreted as Milankovitch‐ driven ( Playford et al 1989 ; Brownlaw et al 1996 , 1998; Hocking et al 1996 ) or tectonically driven ( Hocking et al 1996 ) high‐frequency sea‐level changes.…”

Section: Sequence‐stratigraphic Interpretationmentioning

confidence: 99%

“…The well‐developed metre‐scale cyclicity that characterises the older Devonian (Givetian to lower Frasnian) platforms and platform atolls of the Lennard Shelf (Canning Basin) has been interpreted to record high‐order fluctuations in relative sea‐level during pre‐reef to early reef development ( Read 1973a, b; Hall 1984; Benn 1984; Brownlaw et al 1996 ; 1998). Carbonate facies in the Givetian – lower Frasnian platform successions are predominantly subtidal with very shallow subtidal–intertidal or supratidal fenestral limestone or evaporite caps ( Read 1973a; Brownlaw et al 1996 ; Hocking et al 1996 ). Evidence for relative sea‐level falls and subaerial exposure leading to karstification is remarkably absent given that thick cyclic successions are well exposed in these old platforms and that palaeokarst, related to third‐order falls in relative sea‐level, is preserved in the younger Frasnian and Famennian platforms ( Playford 1980; George & Powell 1997).…”

Section: Introductionmentioning

confidence: 99%

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Palaeokarst development in a lower Frasnian (Devonian) platform succession, Canning Basin, northwestern Australia

George

Chow

1999

Australian Journal of Earth Sciences

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Recognition of palaeokarst in the oldest exposed Devonian (Givetian -lower Frasnian) platform successions of the Canning Basin reef complexes has eluded investigators for over forty years. The first evidence for palaeokarst, developed on microbial mud-mounds in a single stratigraphic horizon, is documented and records an episode of exposure during early carbonate platform development. Surface palaeokarst features are scalloped surfaces, solution pits and a pipe, underlain by fenestral limestone with sediment-filled fossil moulds and vugs. The platform succession has variably developed metre-scale cycles which are composed predominantly of shallowing-upward subtidal facies, with some cycles having fenestral peloidal mudstone caps. Changes in facies type and stratigraphic arrangement up the succession define two deepening-upward units (~70 and 180 m thick), with the palaeokarst surface representing emergence following rapid shallowing at the top of the lower unit. The stratigraphic position of the palaeokarst between these two units suggests it may represent a sequence boundary. This may have been caused by a low-magnitude eustatic fall or footwall-uplift event superimposed on a rapidly subsiding basin margin.

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Section: Stratigraphysupporting

confidence: 83%

Section: Sequence‐stratigraphic Interpretationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Palaeokarst development in a lower Frasnian (Devonian) platform succession, Canning Basin, northwestern Australia

George

Chow

1999

Australian Journal of Earth Sciences

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“…The same shoaling-up sequence of facies was observed in several different places in the lagoon between paleoislands. As such, the sequences represent typical carbonate shoaling-up cycles, which have been widely described from Givetian and Frasnian backreef and carbonate platform facies of the Lennard shelf (e.g., Read 1973;Playford et al 1989;Brownlaw et al 1996Brownlaw et al , 1998Hocking and Playford 2001).…”

Section: Physical Aspects Of Coastal Faciesmentioning

confidence: 98%

Outer Rocky Shores of the Mowanbini Archipelago, Devonian Reef Complex, Canning Basin, Western Australia

Johnson¹,

Webb²

2007

The Journal of Geology

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JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org.. A B S T R A C TThe Oscar Range in Western Australia's Canning Basin features inliers of folded Paleoproterozoic quartzite, quartzitic conglomerate, and phyllite that formed islands during the Late Devonian. Undisturbed strata of the Pillara Limestone (Upper Devonian, Frasnian Stage) surround individual paleoislands that rise above the former seabed with a maximum topographic relief of 90 m. On average, the Mowanbini Archipelago (aboriginal name for the Oscar Range) lies 15 km off the granitic and metamorphic mainland represented by the Kimberley Block to the north. Devonian facies on outer rocky shores were studied at three localities near the southeast end of the Oscar Range. At the west end of the study area, a Devonian reef margin sits unconformably on Paleoproterozoic phyllite, but to the east, the reef is separated from rocky shores by a wide lagoon. Massive clast-supported conglomerate and sandstone beds interfinger with backreef carbonates where the reef is closest to land. Across the lagoon 2.5 km eastward, differential erosion between steeply dipping quartzite layers interbedded with softer phyllite resulted in low sea stacks, or skerries. Tabular quartzite cobbles and quartz sand were shed by the skerries as a unidirectional apron of "breccia" under shoal water conditions. Nearby offshore stromatoporoid thickets reflect growth orientation aligned with paleocurrents compatible with the breccia apron. On a smaller island 2.5 km farther east, lateral transport of debris from a quartzite shore to a contiguous phyllite sector of the coast conforms to the same pattern of water circulation. Overall, the physical geography of outer rocky shores in relation to the lagoon and barrier reef suggests that waves crashed over the reef to energize a longshore current that moved west to east at one end of the Oscar Range. A rapid rise in sea level probably promoted the burial and preservation of the Mowanbini Archipelago, characteristics shared with other examples of quartzite paleoislands that date from Cambrian to Cretaceous times.

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“…Many studies have documented Devonian platform carbonate cycles and sequences from around the world (e.g. Read, 1973; Wong & Oldershaw, 1980; Goodwin & Anderson, 1985; Dorobek, 1991; McLean & Mountjoy, 1994; Elrick, 1995, 1996; Yang et al ., 1995; Garland et al ., 1996; Lamaskin & Elrick, 1997). Sequence development and the history of relative sea‐level change in the Devonian strata of South China have been documented (Chen & Chen, 1994a,b; 1995; Shen et al ., 1994; Du et al ., 1996; Gong et al ., 1997), but detailed studies of the high‐frequency cyclicity of platform carbonates have not been carried out.…”

Section: Introductionmentioning

confidence: 99%

Long‐distance correlation between tectonic‐controlled, isolated carbonate platforms by cyclostratigraphy and sequence stratigraphy in the Devonian of South China

Chen¹,

Tucker²,

Jiang³

et al. 2001

Sedimentology

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During the early Middle Devonian in South China, an extensive carbonate platform was broken up through extension to create a complex pattern of platforms, and interplatform basins. In Givetian and Frasnian carbonate successions, five depositional facies, including peritidal, restricted shallow subtidal, semi‐restricted subtidal, intermediate subtidal and deep subtidal facies, and 18 lithofacies units are recognized from measured sections on three isolated platforms. These deposits are arranged into metre‐scale, upward‐shallowing peritidal and subtidal cycles. Nine third‐order sequences are identified from changes in cycle stacking patterns, vertical facies changes and the stratigraphic distribution of subaerial exposure indicators. These sequences mostly consist of a lower transgressive part and an upper regressive part. Transgressive packages are dominated by thicker‐than‐average subtidal cycles, and regressive packages by thinner‐than‐average peritidal cycles. Sequence boundaries are transitional zones composed of stacked, high‐frequency, thinner‐than‐average cycles with upward‐increasing intensity of subaerial exposure, rather than individual, laterally traceable surfaces. These sequences can be further grouped into catch‐up and keep‐up sequence sets from the long‐term (second‐order) changes in accommodation and vertical facies changes. Catch‐up sequences are characterized by relatively thick cycle packages with a high percentage of intermediate to shallow subtidal facies, and even deep subtidal facies locally within some individual sequences, recording long‐term accommodation gain. Keep‐up sequences are characterized by relatively thin cycle packages with a high percentage of peritidal facies within sequences, recording long‐term accommodation loss. Correlation of long‐term accommodation changes expressed by Fischer plots reveals that during the late Givetian to early Frasnian increased accommodation loss on platforms coincided with increased accommodation gain in interplatform basins. This suggests that movement on faults resulted in the relative uplift of platforms and subsidence of interplatform basins. In the early Frasnian, extensive siliceous deposits in most interplatform basins and megabreccias at basin margins correspond to exposure disconformities on platforms.

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Tidal-Flat Facies in Carbonate Cycles, Pillara Formation (Devonian), Canning Basin, Western Australia

Cited by 18 publications

References 4 publications

Palaeokarst development in a lower Frasnian (Devonian) platform succession, Canning Basin, northwestern Australia

Palaeokarst development in a lower Frasnian (Devonian) platform succession, Canning Basin, northwestern Australia

Outer Rocky Shores of the Mowanbini Archipelago, Devonian Reef Complex, Canning Basin, Western Australia

Long‐distance correlation between tectonic‐controlled, isolated carbonate platforms by cyclostratigraphy and sequence stratigraphy in the Devonian of South China

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