Geology 103Sedimentology and Stratigraphy

Tim HornerGeology Department, CSU Sacramento

Lecture #24: Modern reefs, Ancient reefs (reefs through

time)

Reading assignments:Boggs, 5th ed., pp. 323-327

SACRAMENTOSTATE

Figure 11.17 From Boggs, Principles of Sedimentology and Stratigraphy, 5th ed., p. 324

Energy, facies and coralforms in reefs:

Figure 11.18 From Boggs, Principles of Sedimentology and Stratigraphy, 5th ed., p. 324

Longman's facies classification scheme for reefs:

Figure 12-4 from Davis, Depositional Systems (1992), p. 460

Simplified reef terminology (for ancient reefs):

- Reef Core

- Reef Flank

- Inter Reef

Reef-building organisms through time:

Figure XII-6 From Wilson, Carbonate Facies in Geologic History (1986), p. 375

PreCambrian to Middle Ordovician algal buildup:

Figure IV-1 From Wilson, Carbonate Facies in Geologic History (1986), p. 97

Stromatolite morphology vs. environment

Figure 8.15 from Reading, Sedimentary Environments and Facies, (1986) 2nd edition, p. 202

Mid- upper Paleozoic reef

Figure 10.65 from Reading, Sedimentary Environments and Facies, (1986) 2nd edition, p. 337

Rudistid bivalves:

Caprinids, Toucasids

Figure XI-1 From Wilson, Carbonate Facies in Geologic History (1986), p. 320

Mesozoic Rudistid/ Caprinid reef:

Figure 13.30 From Boggs, Principles of Sedimentology and Stratigraphy, 2nd ed., p. 493

Mesozoic Rudistid reef, Persian Gulf:

Figure XI-14 From Wilson, Carbonate Facies in Geologic History (1986), p. 346