Geology Page

John Dewey High School
Keys to Mastery
Cycle III Laboratories Schedule
Cycle IV Laboratories Schedule
Cycle IV Homework Schedule
Cycle III Homework Schedule
New York
This page was last updated on: October 5, 2020
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Earth's Shape, Size, and Surface Fact Sheet
Mid-Winter Recess Homework
First Quiz Review Questions
Minerals and Mineral Identification
Common Minerals: Images and Characteristics
Rock Classification and Interpretation: Principles and Practices
Interpretation of Rock Environments
Interpretation of Geologic History: Stratigraphic Principles
Structural Geology I: Tilted, Faulted, and Folded Strata
Structural Geology II: Unconformities
Cycle III Quiz No. 1
Cycle III Quiz No. 2
Structural Geology III: Concepts of Stress and Strain
Structural Geology IV: Analysis of Deformed Rocks
Seismology I: Basic Principles and Quantification of Earthquakes
Homework Schedule
Laboratory Schedule
Tutorials
Field Trips
Quizzes and Exams
Almandine Garnet

Oetztal
AUSTRIA
Graph Paper on a Sphere: Latitude and Longitude
Forensic Geology: Landfill, Stratigraphy, and Geologic Time
Geological Research of NYC and Environs: Online Publications
Bedrock Geology of New York City  by Pamela Chase Brock and Patrick W. G. Brock
Stratigraphy, Structural Geology, and Ductile- and Brittle Faults of New York City by Charles Merguerian
Geology of Staten Island and Vicinity, New York by Charles Merguerian
Geology of Central Park - From Rocks to Ice by Charles Merguerian and Mickey Merguerian
"Thinking Like a Geologist"
Exercise Series

Part I

Part II

Part III

Part IV

Part V

Part VI

Part VII
Grand Canyon


ARIZONA
Selenite
[Euhedral "Butterscotch" Crystals on Massive]

PERU
Photographed by Michael P. Klimetz
Photographed by Michael P. Klimetz
Photographed by Michael A. Klimetz
Photographed by Michael P. Klimetz
Manganese Nodule

KCON Claim
Clarion-Clipperton Fracture Zone
[4500-5500 m Depth]
PACIFIC OCEAN
Eduard Suess
John Walter Gregory
Leopold Kober
Emile Argand
Emile Argand
Giants of Geology
New Jersey
Connecticut
Lithologic and Structural Constraints on TBM Tunnelling in New York City by Charles Merguerian
Hans Stille
UNC's Atlas of Rocks, Minerals, and Textures
Laboratories
Topographic Contours: Submerging a Volcano Model (Images)
Imagery and Virtual Museums
Topographic Contours: Submerging a Volcano Model (Images)
Virtual Geology Museum
Virtual Paleontology Museum
Principal Lithospheric Plates
Structural Implications of Walloomsac and Hartland Rocks Displayed by Borings in Southern Manhattan by Charles Merguerian and Cheryl J. Moss
Newly Discovered Serpentinite Bodies Associated with the St. Nicholas Thrust Zone in Northern Manhattan by Charles Merguerian and Cheryl J. Moss
Newly Discovered Ophiolite Scrap in the Hartland Formation of Midtown Manhattan by Charles Merguerian and Cheryl J. Moss
Bedrock Control of a Boulder-Filled Valley Under the World Trade Center Site by Cheryl J. Moss and Charles Merguerian
The Narrows Flood - Post Woodfordian Meltwater Breach of the Narrows Channel, NYC
by Charles Merguerian
Post-Alleghenian Deformation of the Shawangunk Ridge in NY and NJ by Jeffrey Wills et al.
A Study of the New Outcrop of Sediments in Charleston, Staten Island, NY by Alan Benimoff at al.
Photograph and Image Gallery
Geological Oddities and Rarities:
I, II, III, IV, V, VI, VII, VIII, IX, X, XI, XII, XIII, XIV, XV, XVI, XVII, XVIII,
XIX,  XX,  XXI
Sample
Professional
Publication
Academic Calendar
Models of Thrust-Fault-Initiated Folding
Hanging Wall Displacement
Hanging Wall Displacement
No Displacement
Pre-Folding
Vertical Shear Folding
Flexural Slip Folding
Vertical Lines Remain Vertical and are
Parallel to Planes of Shear
Vertical Lines are Rotated
Redefining the Southern Terminus of the Intrusive Contact Between the Yonkers and Fordham Gneiss in Van Cortlandt Park, New York City, New York by Douglas E. Isler et al.

Thin Section Gallery
Cretaceous-Tertiary Boundary
Tinton Formation
Manasquan River Basin, Monmouth County, New Jersey
Cretaceous: Sandy Clays
Tertiary: Silty Clays
Cretaceous-Tertiary Boundary
[Iridium-Rich]
Photograph from Landman et al., American Museum of Natural History Bulletin 303 (2007)
Extrusive Contact
Between the Orange Mountain Basalt and the Passaic Formation
Flemington, NJ
Photograph Courtesy of the New Jersey Geological Survey
Passaic Formation
Orange Mountain
Basalt
Contact
Zone
Intrusive (Lower) Contact
Between the Palisades Diabase and the Stockton Formation
Fort Lee, NJ
Photograph Courtesy of the New Jersey Geological Survey
Palisades Diabase
Stockton Formation
Contact Zone
Hornfels
Tremont Syncline
Llewellyn Formation - Pennsylvanian
I-81
Schuylkill County
PENNSYLVANIA
Photograph Courtesy of the Pennsylvania Geological Survey
Distribution of the Marcellus Shale in the Appalachian Basin
of the
Eastern United States
and a
Simplified Cross Section Shown Along Line A-A'
Courtesy of the American Geophysical Union
Courtesy of the American Geophysical Union
Combination of Directional Drilling and Hydraulic Fracturing Geology Used
for
Gas Production from the Marcellus Shale in the Appalachian Basin
Marcellus Shale
Devonian
PENNSYLVANIA
Courtesy of Penn State University
Sir Roderick Impey Murchison
1st Baronet KCB DCL FRS FRSE FLS PRGS PBA MRIA
Scottish Geologist

Named the Silurian System of Strata
Tilted Sandstones and Conglomerates

Shawangunk Formation
Silurian

NY Route 17

Ulster County
NEW YORK
Photographed by Michael P. Klimetz
Geologic Sketch Map of the Lower Hudson Valley
New York-New Jersey-Connecticut
Image Courtesy of Charles Merguerian
Geologic Profile at the George Washington Bridge
New York-New Jersey
Image by Charles P. Berkey [1948]
Bedrock Geologic Map of Staten Island

Image Courtesy of Charles Merguerian
Largest Known Trilobite

Terataspis grandis [Hall]
Devonian
NEW YORK

Image by J. M. Clarke [1890]
60 cm
Model of Ophiolite Generation at Mid-Oceanic Ridge
Accretionary Wedge Model
Model of the Emplacement of the Ballantrae Ophiolite Complex
Steady-State Model for the Development of Oceanic Lithosphere
[Dewey and Kidd 1977]
Models of Oceanic Crust Accretion at Mid-Oceanic Ridges
[Dewey and Kidd 1977]
Charles P. Berkey

Engineering Geologist and Professor of Geology
Columbia University
NEW YORK
Albert Heim

Alpine Geologist
and
Former Director of the Geological Survey of Switzerland

Geologic Map of Edinburgh and Surroundings
Arthur's Seat
[Extinct Carboniferous Volcano]

EDINBURGH
Stratigraphy, structural geology and metamorphism of the Inwood Marble Formation, northern Manhattan, NYC, NY by Charles Merguerian, J. Mickey Merguerian, and Nehru E. Cherukupalli


Upper Hemisphere Wulff-Net Stereographic Tectonic Plate Projections
[Images from Dewey in The American Journal of Science 1975]
Rudolf Ruedemann

State Paleontologist of the State of New York and Specialist on Graptolites and Eurypterids

Biographical Memoir by Professor John Rodgers
Image from Y. Tang et al., Geoscience Frontiers 3(5) (2012)

Tectonic Sketch Map
of the
Songpan-Ganzi Accretionary Complex

China
Hans Stille
Steinmann's Trinity
[Plattadecke]
MSc Thesis
[1983]
Page 2
Photographed by Michael P. Klimetz
Almandine Garnet
[Euhedral Crystals in Matrix]

Marmora Mine
Ontario
CANADA
Earth Sciences in the NYC Urban Environment by Wayne G. Powell