Topic G1: ROCK FORMING PROCESSES Key Idea 3: Sedimentary processes can be understood using scientific modelling Knowledge and Geological techniques Comments understanding and skills a. Sedimentary processes Application of the Hjulstrom which are infrequent graph. and/or difficult to observe (e.g. turbidity currents) Determination of the slope and can be understood and intercept of a linear graph. explained using scientific models. b. The distribution of Application of to Candidates are expected to Walther’s Law environments extend interpretation from two- relate vertical sequences represented by rocks in a dimensional data (borehole (e.g. outcrop of borehole) vertical stratigraphic logs, cliff sections, graphic with the lateral changes in column is related to the logs) to three-dimensions. facies identified in modern distribution of those sedimentary environments environments laterally (e.g. a delta) and (Walther's Law); marine understand that lithofacies transgressions and are not necessarily time- regressions, diachronous dependent. stratigraphic boundaries.
Topic G1: ROCK FORMING PROCESSES Key Idea 3: Sedimentary processes can be understood using scientific modelling Knowledge and understanding Geological techniques and skills Comments a. Sedimentary processes which are infrequent and/or difficult to observe (e.g. turbidity currents) can be understood and explained using scientific models. Application of the Hjulstrom graph. Determination of the slope and intercept of a linear graph. b. The distribution of environments represented by rocks in a vertical stratigraphic column is related to the distribution of those environments laterally (Walther's Law); marine transgressions and regressions, diachronous stratigraphic boundaries. Application of Walther’s Law to extend interpretation from two- dimensional data (borehole logs, cliff sections, graphic logs) to three-dimensions. Candidates are expected to relate vertical sequences (e.g. outcrop of borehole) with the lateral changes in facies identified in modern sedimentary environments (e.g. a delta) and understand that lithofacies are not necessarily time- dependent.
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