13	GSTT FIELD GUIDE TO TRINIDAD

In order that all the good outcrops in Trinidad that are easily accessible and/or important are listed in the proposed field guide, the sub-committee has identified those that they intend to include in the guide on the 1:100,000 map included with this issue of the Newsletter.
It would be appreciated if any members who know of good outcrops that are not included contact one of the people listed below:
K. Rodrigues (Trintoc), J. Keens-Dumas (Trintopec), J. Frampton (Trinmar),
H. Inniss (Ministry of Energy) and K. Dyer-Williams (Civil Engineering, UWI). The GSTT hopes to have the guide published, using a 1:50,000 base, prior to the GSTT conference in April 1990. Any members with suggestions are therefore asked to respond quickly to this request.

SHEET 1
1&2 Maracas and Chancellor Formations of Kugler (1959) and Potter (1976).
Bedded folded beds with cobble sized clasts in discrete beds.
3. Winn's Bay - Laventille lmst. and phyllites Also on Gaspar Grande - flourite and ironstones, caves.
4. Pt. Gourde - Interbedded folded limestones and phyllites in the Laventille Fm.

SHEET2
1. Maracas - Fm - quartzites
2. Maracas - Fm - quartzites and phyllites.
3. Maracas - Fm - metavolcanics
3a Maraval (1976) Fm - type section - Potter
4. Maraval Fm - Raffi Ahmad stop
5.Maraval Fm - Lmsts. - Cutucupano Quarry.
6 Maracas Fm - type section - Potter (1976).
7. Chancellor Fm - type section - Potter (1976).
8. Lady Young Road - Morvant Beds and Phyllites of Chancellor Fm.
9. Gypsum lens.
10. Moonan Quarry, Lady Young Road.
SHEET 3
1. Maracas Fm - near beach facilities, Las Cuevas.


SHEET 4
1. Cumaca Quarry, Cumaca Road, Cuare limestone, Rio Seco Fm.
2. Hollis Damsite - Site of Tithonian ammonite finds. Original locality now lost.
SHEET 5
1. Toco Fm - lmst facies
2. Sans Souci Volcanics
3. L'Anse Noir Grit Member - Toco Fm.
4. Cherry Cake Conglomerate.
5. Toco Fm.
6. Galera Grits - Galera Pt.
7. Forest Pt/Salibia Rd.- Galera Grits
8. Tompire Bay type locality, Tompire Fm.
9. Guayaguayare Pt. - Phyllites and coarse to conglomeratic grits, Grande Riviere Fm.
10. Parasitic Folds - Grande Riviere Fm.
11. Barracuda Pt. - Near contact of Grande Riviere and Rio Seco Fms.
12. Siras River - Rio Seco Fm.
13. Bateau Pt. - Balandra Grit Member at base of Grande Riviere Fm.
14. Matura Bay (N. end) - Grande Riviere Fm.

SHEET 6
1. Several Quarries - Laventille Fin.
2. Gypsum Quarry, St. Joseph.

SHEET 7

1. Arima Fault Zone - Extensively deformed metasediments in river bed down from Arima - Blanchisuesse Rd.,
2. Extensive Quarries in Sum Sum Sd. -Ravine Sable Rd.
3. Quarry in Durham Sd. - Durham Mills Rd.
? Clay for Abel Brick Factory.

SHEET 8

1a. Basal Manzanilla

1. Cunapo Cgl. in Mandillon River
2. Pointe-a-Pierre Fm.
3. Chaudiere Fm.
4. Tamana Hill - Guaracara Lmst.
5.? Nariva Sands
6. Pointe-a-Pierre Fm
7. Cuche Fm - Hans Rd.
8. Guayaguayare Fm. - Gautier River.
9. Gautier Fm/Naparima Hill Fm. Contact - Gautier River.
10. Maridale Lmst. blocks in Cuche Fm -Cuche River. (Barr 1952).
11. Cuche Fm. - Siltstone and Cherry Cake type.
12.? Pointe-a-Pierre - excellent sedimentary structures.


SHEET9
1. Manzanilla Coast section - Pt. Lobin to Pt. Paloma Field trip guides.
2. Caigual Fault.
3. Manzanilla Bay - Type locality, Manzanilla Fm.
4. Brigand Hill - Guaracara Lmst.

SHEET 10

1. Quarries in Sum Sum Sd.
2. Springvale Fm. - Rich molluscan beds.
3. Telemaque Sandstone - Manz Fm.
4. San Jose Member - Manz. Fm.
4a. Plaisance Cgl. - San Fernando Fm.
5. Quarries in Guaracara Lmst.
6. Pointe-a-Pierre Fm.
7. Rantdat Marl - Liz . Sprs. Fm.
8. San Fernando Fm. behind Railway Station
9. Naparima Hill.
10. Cipero Coast

SHEET 14
9. Morne L'Enfer
11. Alley Creek wave cut platform in calc. shale facies of Cipero.
12. Hermitage Quarry.

SHEET 11
1. Brasso Quarry - Molluscan fauna in Telemaque Mbr., Manzanilla Fm.
2. Brasso Gorge - Montserrat Glauc. Sst. Mbr. and Telemaque Mbr., Manzanilla Formation.
3. Brasso Fm in River Cuttings and Rd cuttings.
3a. Montserrat Glauconitic Sst. - waterfall in Savaneta River.
4. Tabaquite Lmst. Quarry.
5. Cement Factory Quarry, Mayo - Guaracara Limestone
6&7 Additional Quarries - Guaracara Lime­stone.
8. Morne Roche Quarry
9. Pointe-a-Pierre Fm - Sandstone Trace.
10. Nariva Sands
11. Piparo Mud Volc. - Faults assoc. with eruptions have affected houses nearby.
12. Friendship Quarry - Navet Fm.
13. Jackson Hill - Navel Fm.
14. Dunmore Hill - Navet Fm.
15. Devil's Woodyard Mud Volc.

SHEET 12
1. Navet Fm. - Navet River
2. Fitt Trace Marl - Navet Fm.
3. Biche Lmst. Quarry
4. O'Brien Trace - Biche Lmst.

SHEET 13
1. Radix Pt. Sandstone
2. Palmiste Fm.
SHEET 14
1. Porcellanite at Pupa del Moro.
2. Soldado Rock - Paleocene and Eocene Lmsts.

SHEET 15
1. Pitch Lake
2. Pt. Rouge Porcellanite
3. Upper Morne L'Enfer cliff Section
4. Oil Sand Quarry (in use)
5. Oil Sand Quarry (abandoned)
6. Los Bajos Fault Zone - La Fortune
7. Oil seep, Point Fortin/Forest Reserve Rd.
8. Morne L'Enfer - McKenzie Fid.
9. Type locality, Lot 7 Silt
10. Porcellanite Quarry -- Buenos Ayres
11. White Cliff - Erin Formation
12. Palo Seco Mud Volcs.
13. Anglais Pt.Mud Volcs.




SHEET 16

1. Praeorbulina glomerosa type locality -AO 18
2. Upper Forest Clay, type Loc., FR 722
3. Forest Formation - Fyzabad/Forest Reserve Rd., type Loc.
4. Pleistocene Mammal/Upper Forest Clay Foraminiferal type Loc., FR 1060
5. Forest Fm - Fyzabad
6. Digity Mud Volcano
7. Mud Flow - Forest Reserve
8. Morne L'Enfer
9. Morne L'Enfer
10. Los Bajos Fault Zone
11. Morne L'Enfer
12. Morne L'Enfer
13. Palo Seco Bay Cruse Fm.
14. Quinam Bay - Cruse Fm.
15. Morne Diablo Quarry



SHEET 17

1. Herrera Fm.
2. Herrera Fm.
3. Marac Quarry - Soldado Formation
4. Cascas River - Gr. rex type locality
5. La Lune Pt. - Contorted beds Moruga Fm.
6. Moruga Fm.

SHEET 18
1. Lizard Rd. - Karamat, Liz. Springs, Lengua - Polyperibola type Loc.
2. Cr. formosa type loc.
3. Salt Springs
4. Moruga Fm. - Moruga East Field
5. Moruga Bouffe
6. Sedimentary Dykes - Well G29
7. Lagon Bouffe Mud Volcano

SHEET 19
1. Schoener's Rd., Trinity Hill Sandstone
2. Mayaro Fm. - Mayaro Coast
3. Gros Morne Anticline - Gros Morne Fm.
4. Gros Morne - Galeota Pt.

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