Page 164 - Carbonate Sedimentology and Sequence Stratigraphy

CHAPTER 8: SEQUENCE STRATIGRAPHY OF C AND M FACTORIES 155

Fam.

Frasnian

Famennian facies platform interior systems tract

highstand

platform margin transgressive

slope & basin lowstand
Frasnian 500 m shallow shelf
transgressive

M-carbonates (Famennian).
1 km boundary between T-carbonates (Frasnian) and
Fig. 8.11.— Sequence model of Devonian carbonate platform of the Canning Basin, NW Australia, based on wells and seismic data.
Frasnian rocks belong to the T factory, Famennian rocks to the M factory. Note that the sequence geometry is virtually identical. M
platforms and T platforms are practically indistinguishable at this large scale. After Kennard et al. (1992), modified.

formed during an intra-Famennian event and was sealed by systems tracts of the T and M factory.
biostratigraphically only marginally younger shale. Further support for the notion that the systems tracts of
Systems tracts on M platforms can be expected to resem- the T and M factories are very similar may be derived from
ble those of the T platforms. The Late Devonian of the recent studies in Late-Proterozoic carbonates (Adams et al.,
Canning Basin supports this view (Fig. 8.11; Kennard et al., 2004).
1992). No significant difference has been observed between