Locality 1 Low-angled slabs beside road
• Pale medium grained granite
• Joints
Locality 2 Flat exposures near tree line
• Pinker granite (more alkali feldspar)
• Blob like pegmatite – feldspar crystals up to 6cm (gas rich magma has fewer nucleation sites leading to larger crystals)
Locality 4 Exposures near birch and pine trees
• Metamorphosed dalradian sediments with foliation (schist). Folded.
• Sharp contact with granite
• No chilled margins or baked edges – intruded at depth (not a big temperature difference)
• Evidence of other magmatic rock types (diorite, feldsite)
Locality 3 Crags west of Little Craig
• Coarser grained, biotite poor granite
• Sharp contact with sediments
• Huge pegmatite block
WOLVES ROCK – Above Kindrogan field centre
• Large fallen block of Pitlochry schist with garnets (2 - 4 mm) [garnet mica schist]
• Well defined depositional layers. Strong foliation – larger, redder garnets, weaker foliation – smaller oranger garnets (less Fe)
• Foliation around garnets (pre or syn kinematic)
NIGG BAY: NJ 965 049
Going away from carpark
Locality 1
• 50:50 mix of granite and schist
• Migmatite
• Granite oozing out of foliation in schist
• Horizontal foliation in schist
• Granite produced by crustal melting (20-30% to release granite)
Locality 2
• Medium grained granite (pink)
• Less granite than before
• Foliations more random
Locality 3
• 90:10 granite:schist
• Granite with small blocks of country rock in random orientation
• Fine to medium grained granite
Locality 4
• Amphibolite
• Sharp contact with granite
• Boudinaged quartz
DUNKELD
• Fold with axial cleavage
• Beds visible
• Antiform
• Younging direction towards centre so downwards facing and at least 2 stages of deformation
• Other synforms and antiforms visible
STONEHAVEN: Perthumie Bay NO 884 877; Garron Point NO 894 877.
Garron point
• Pillow lava
• Highland boundary fault
Skatie shore
• Rocks show bedding (steeper 80°) and cleavage (60°)
• Metapsamite
• Fine to medium grained sand
• Fining upwards
• Some flute marks
• Beds right way up
STRATH FIONAN: NN 717 575
Day 1
Locality 1
• Quartzite
• Elongated quartz grains
• Long tabular feldspar crystals
• Linear fabric
• Bedding (cross stratification)
Locality 9
• Schist
• Garnet
• Stautolite
• Kyanite (did not see)
• Crenulation lineation
Locality 6
• Large (10mm) garnets in sheet associated with quartz
• Garnet mica schist
• Garnet pre or syn kinematic
• No convincing boudinaged garnet
• V. good crenulation
Locality 4
• Kyanite??
Locality 3
• Amphibolite
• White plagioclase crystals
• Hornblend
Day 2
Locality 11
• Schist
• Garnet – pre or syn kinematic (eye structures)
• Kyanite (convincing) random orientation (cutting fabric)
• Amphibolite with long tabular plagioclase
• Sharp contact with schist
• Weathering proud
Locality 10
• Metamorphosed limestone
• Isoclinal folds
• Folds follow bedding
• S- and Z- folds
• Small outcrop of schist between limestone and dyke
• Sharp contact between amphibolite dyke and schist
• Garnets in amphibolite
Conclusion
• Planar fabric – schist only
• Linear fabric – schist (crenulation), quartzite (quartz and feldspar) and amphibolite (feldspar)
• No fabric – limestone
• All locations in kyanite zone but chemistry not always suitable to produce metamorphic minerals (eg kyanite needs Al)
