So, how exactly will we be doing this geological mapping during the Field School? The idea is for the participants to produce a map showing the different geology and highlighting some of the key features they'll encounter. These features include, for example: 1. how different rocks are in contact with each other, 2. what is the orientation of certain structural elements (foliation, lineation) expressed by the rocks, 3. the mineralogy of the rocks, and various other features.
These and other features are listed in a datasheet, and participants are expected to populate this datasheet with the information they gather during the field work:
The datasheet can be downloaded here: Data Input Sheet
Here is a graphic highlighting some of the things participants will be doing during the Field School:
Participants will spend some time doing remote sensing on various satellite images (ASTER, SPOT, Landsat). The purpose of this is to highlight possible variations in the geology, prior to going to the field. This allows for accurate base maps (on which mapping will be done) to be created and certain areas to be given preference.
B. Observation
Keep a close eye on the rock! Literally. Look carefully at the mineralogy (use a hand lens to really zoom in), try and understand what the meaning of the rocks are and the story behind them.
C. Structure
Record structural data. This is key for establishing the depositional (e.g. bedding, paleocurrents, etc.) and deformational (e.g. foliation, lineation, etc.) history of the rocks.
D. Sampling
Collect rock samples for analysis in magic machines (XRF, XRD) and creating thin sections for observation under microscope. Possibly age-determination, where necessary (SHRIMP, ICPMS).
E. Record your Data
As you make observations and collect various geological data, remember to make concise recordings of this (keep in mind your datasheet that will have to be populated). A field book becomes one of the most important tools used during the field work, lose it and you lose all your data!
F. Database
Update a database on a regular basis (comprised predominantly of your datasheet). In 2014, this will be achieved with the use of field toughbook pc's. This will allow for a live view of the project progress as data is being collected. This also allows for the geology and geological history to be understood systematically, through the acquisition and describing on field data as live format.
E. Field Map and Report
Use all geological data collected to produce a field map. This highlights all geology seen and provides a summary of the structural elements. The details of these will then be further elaborated in an accompanying geological report. Remember that the map and report should work together to portray the geological story you wish to tell.
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