Geology Trail Map

Trail to Lookout Point!                    

                                                            Mineral Dump: GR, L, C, S

                                                                     Geology Trail                                                                               

Trail to fallen tower.

                                                           Short Cut Trail

Road from Quarry to the top of the Geology Trial

There are numbers on the trees that correspond to the geologic periods listed below:

0- Pre-Cambrian:- Anorthosite made with extreme heat and pressure. Abundant on the moon.

1- Cambrian: Herkimer Diamonds, NY. Right side: quartzite (Martin's Limestone; Honey Brook Quarry)

2- Ordovician: Limestone from the Beekmantown Formation (Martin's Limestone; Burkholder Quarry)

3- Silurian:

4- Devonian: Shale from Deer Lake, PA with mainly shell fossils.

5- Carboniferous: 5a: Mississippian 5b: Pennsylvanian: Coal fossils, stems, and bark of ancient trees.

6- Permian:

7- Triassic: Most of the rocks in this park are Triassic in age. French Creek Mine spoils: French Creek Mines minerals

8- Jurassic:

9- Cretaceous: Spoils from the Inversand Pit in NJ,  Inversand pit Mosasaur teeth

10- Tertiary: Microfossils from Vincentown, NJ. Along the Rancocas Creek (South branch) just North of Vincentown many very small fossils can be found in the bank of the creek.

11- Quaternary: Fossils from Aurora, NC phosphate pit. There are shark's teeth, shells, coral, bone, & skates.

Mineral Dump Spoil Piles

A- Amber: not a mineral, but hardened sap from trees. Amber, a translucent golden color, is fossilized sap or resin from trees. Some of the oldest known bees, ants, wasps, cockroaches, flies, and other insects have been found preserved in amber. (Not much amber is left to find)

AN- Anorthosite: Formed under extreme heat and pressure. Much of the moon is made of anorthosite.

C- Calcite - The Calcite is from Martin's Limestone (Burkholder Quarry). The Calcite formed in the cracks of the limestone. Notice the cleavage is along flat plane surfaces.

D - Diabase: The quarry here and big boulders from the quarry are diabase which was called black granite. For old pictures of the quarry see http://www.triassicparkofpa.com/history/index.htm

F - French Creek Mines: French Creek Mines minerals (Not much is left to find)

• Pyrite - fools gold
• Chalcopyrite - darker gold
• Magnetite - black
• Calcite - white

G - Grace Magnetite Mine spoils, Morgantown, PA. Bring a magnet and find magnetite which will stick to the magnet. There are about 20 tons of rocks from this mine in the parking next to the fenced in quarry. Other minerals you can find:

• Serpentine - green color
• Limestone - white color
• Pyrite - fools gold
• Chalcopyrite - darker gold
• Magnetite - black
• Actinolite
• Chlorite
• Natrolite
• Hematite
• Calcite
• Phlogopite
• Biotite

GR - Granite: There are about 20 tons of granite on top of the road going up to the top of the Geology Trail and in the mineral dump.

• Amphibolite- black color
• Epidote- green color
• Felspar - pink color, notice the cleavage is along flat plane surfaces.
• Pegmatite- mixture of colors
• Quartzite - white color

H - Herkimer Diamonds, clear quartz crystals that people call diamonds. (Not much is left to find)

L - Limestone: Under the road going to the top of the Geology Trail are limestone rocks. At #3 are limestone rocks from the Beekmantown formation in the Ordovician period. 

Q- Quartzite: From Martin's quarry in Honey Brook, PA. White in color. It is mainly compressed sandstone. They grind it up into fine white sand for golf courses. Some of the rocks have trace fossils of tube worm holes.

S - Serpentine: It is dark green in color from Martin's Limestone (Burkholder Quarry).

Nature Trail