Unit name | Sedimentology |
---|---|
Unit code | EASC20007 |
Credit points | 10 |
Level of study | I/5 |
Teaching block(s) |
Teaching Block 2C (weeks 13 - 18) |
Unit director | Professor. Phillips |
Open unit status | Not open |
Pre-requisites |
Mandatory Year 1 units of an Environmental Geoscience, Geology, Geophysics or Palaeontology and Evolution programme at Bristol. |
Co-requisites |
n/a |
School/department | School of Earth Sciences |
Faculty | Faculty of Science |
The unit builds and expands upon the Level I Dynamic Surface and Surface Materials sections in EASC10001 Geology 1, taking a process-based approach to sedimentology. The study and interpretation of sedimentary sequences is fundamental to many other branches of Earth Science, and to our understanding of the history of the Earth.
This unit will develop an understanding of the processes by which sedimentary particles are transported and deposited, how these deposits are stacked to form sedimentary sequences, and what transformations occur after deposition to form sedimentary rocks. We will investigate many of the processes occurring at the surface of the planet as a result of the interaction of rocks and loose sediment with water and air, and will examine the way in which relative sea-level, climate and tectonics control the accumulation of sedimentary sequences. The chemical and physical processes by which loose sediment is turned into rock and rock properties are altered during burial, collectively termed diagenesis, are explored. The subject areas covered will take you from eroding mountain belts, down rivers, via estuaries and deltas to the deep oceans, through arid deserts and tropical seas.
By building on your understanding of modern environments, you will be able to unfold the evolution of sedimentary sequences and hence the history of sedimentary basins. The difficulties and uncertainties involved in such interpretations will become apparent as the course proceeds.
On successful completion of the unit you will be able to:
15 lectures, 4 x 3 hour practicals, 1 day field trip
Formative assessment
Practical work is not assessed, and verbal feedback will be given during or after the practical class. Written feedback on each practical exercise will be given via Blackboard after each practical class.
Summative assessment
Coursework components consist of a synoptic report on the fieldwork (3 pages plus figures and appendices), supplemented by a report on calculations made from the field data (3 pages), and a sedimentary log (1 page), which constitute together 70% of the total unit mark. In addition there will be one coursework test (one hour, unseen) which will assess technical skills for quantifying particle settling and transport learned in lectures and practical classes (10% of total unit mark).
The 1 hour timetabled exam will consist of a multipart exam question. This exam may cover any topic, theoretical or practical, covered in the unit.
Failure to attend practicals or to hand in work could bar you from sitting the theory exam.
Recommended:
Further Reading