GEOLOGY AND GEOMORPHOLOGY OF THE NEW JERSEY COAST FROM THE SANDY HOOK BAY TO CAPE MAY FABIO...
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Transcript of GEOLOGY AND GEOMORPHOLOGY OF THE NEW JERSEY COAST FROM THE SANDY HOOK BAY TO CAPE MAY FABIO...
GEOLOGY
AND
GEOMORPHOLO
GY OF
THE
NEW JE
RSEY COAST
FROM
THE S
ANDY HOOK B
AY T
O
CAPE M
AY
F AB
I O C
AS
TI B
L AN
CO
GE
25
4
NEW JERSEY COAST
• Stretches from Sandy Hook to Cape May• 127 Miles
• Densely populated – Economic Focal Point
• Geologically• Extremely flat (trend that heads inland)• Composed of sediments• Erosional Coast
NEW JERSEY COASTAL PLAIN CREATION
• Pre-Pleistocene Glaciation• Cohansey Formation• Bridgeton Formation
• Pleistocene Glaciation• Pensauken Formation• Cape May Formation• Multiple facies
PRE-PLEISTOCENE ENVIRONMENTS
• Cohansey Formation
Stanford, 2005
PLEISTOCENE GLACIATION
Stanford, 2005
CURRENT SHORELINE
• Different shoreline beach types• Barrier Bar system• Back Bays
• Exposed Beaches
• EROSION• Erosion on beaches• 2.2 meters a year• Sediment transport• Directionality of transport
• Human intervention• Groins
• Sea Level Rise
EROSION- GROINS• Cape May - Groins
DEPOSITION
CURRENT EROSIONAL PATH
• Factors increasing erosion/ worsening the situation• Human intervention• Cutting off supply for replenishment • Pumping from off shore sand
• Global warming• Stronger storms• Hurricane Sandy
• Sea level rise
• Going to get worse!
SANDY AFTERMATH
USGS
SUMMARY
• The New Jersey Coast is not headed in a good direction• Erosional coast, economically developed• Under threat of erosional forces• Increasingly worse
• Can we do anything?• Short-term = Yes• Long-term = No