24-1.8 mya
GM7 Geology of the South-Central Kent County Area, Delaware
This page tagged with:
- Atlantic Coastal Plain
- Calvert Formation
- Choptank Formation
- Columbia Formation
- cross-sections
- Holocene
- Kent County
- mapping
- marsh and tidal deposits
- Miocene
- Neogene
- Pamunkey Formation
- Piney Point Formation
- Pliocene
- rocks
- subsurface
- upper Holocene
- upper Pleistocene
- upper Pliocene
- lower Holocene
- lower Pliocene
- middle Pleistocene
- Miocene
- Pleistocene
- Tertiary Period
- upper Miocene
- lower Pleistocene
- middle Miocene
- lower Miocene
GM6 Geology of the Dover Area, Delaware
This page tagged with:
- Atlantic Coastal Plain
- Calvert Formation
- cross-sections
- Dover
- Holocene
- Hornerstown Formation
- Kent County
- Magothy Formation
- mapping
- Matawan Formation
- Miocene
- Monmouth Formation
- Neogene
- Pamunkey Formation
- Piney Point Formation
- Pliocene
- Potomac Formation
- rocks
- subsurface
- upper Holocene
- upper Pleistocene
- upper Pliocene
- Vincentown Formation
- lower Holocene
- lower Pliocene
- middle Pleistocene
- Miocene
- Pleistocene
- Tertiary Period
- upper Miocene
- lower Pleistocene
- middle Miocene
- lower Miocene
GM5 Geology of the Smyrna-Clayton Area, Delaware
This page tagged with:
- Atlantic Coastal Plain
- Clayton
- cross-sections
- Holocene
- Hornerstown Formation
- mapping
- Miocene
- Monmouth Formation
- Nanjemoy Formation
- Neogene
- New Castle County
- Piney Point Formation
- Pliocene
- rocks
- sediments
- Smyrna
- subsurface
- upper Holocene
- upper Pleistocene
- upper Pliocene
- Vincentown Formation
- lower Holocene
- lower Pliocene
- middle Pleistocene
- Miocene
- Pleistocene
- Tertiary Period
- upper Miocene
- lower Pleistocene
- middle Miocene
- lower Miocene
GM3 Geology of the Newark Area, Delaware
This page tagged with:
- Appalachian Piedmont
- Augite
- Baltimore Gneiss
- Cockeysville Marble
- Cretaceous Period
- cross-sections
- Faulkland Gneiss
- Glenarm Series
- Holocene
- Iron Hill Gabbro
- mapping
- Microcline
- Miocene
- Monazite
- Montmorillonite
- Neogene
- New Castle County
- Newark
- Oligocene
- Pegmatite
- Pennsylvanian Period
- Permian Period
- Pliocene
- rocks
- subsurface
- Upper Cretaceous
- upper Eocene
- upper Holocene
- upper Pleistocene
- upper Pliocene
- Wissahickon Formation
- Carboniferous Period
- Eocene
- Jurassic Period
- Lower Cretaceous
- lower Holocene
- lower Pliocene
- middle Eocene
- middle Pleistocene
- Miocene
- Mississippian Period
- Paleogene
- Pleistocene
- Tertiary Period
- upper Miocene
- Devonian Period
- lower Eocene
- lower Pleistocene
- middle Miocene
- Paleocene
- Triassic Period
- lower Miocene
- Silurian Period
- Ordovician Period
- Mesozoic Era
- Paleozoic Era
GM1 Geology of the Chesapeake and Delaware Canal Area, Delaware
This page tagged with:
- Atlantic Coastal Plain
- Chesapeake and Delaware Canal
- Cretaceous Period
- Delaware City
- Englishtown Formation
- Magothy Formation
- mapping
- Marshalltown Formation
- Merchantville Formation
- Miocene
- Mount Laurel Formation
- Neogene
- Oligocene
- Pliocene
- Potomac Formation
- Rancocas Formation
- rocks
- St. Georges
- subsurface
- Summit Bridge
- Upper Cretaceous
- upper Eocene
- upper Pliocene
- Eocene
- Lower Cretaceous
- lower Pliocene
- middle Eocene
- Miocene
- Paleogene
- Tertiary Period
- upper Miocene
- lower Eocene
- middle Miocene
- Paleocene
- lower Miocene
- Mesozoic Era
DGS issues report on the geology of Bethany Beach
This page tagged with:
- Beaverdam Formation
- Bethany Beach
- Bethany Formation
- Calvert Formation
- Cat Hill Formation
- Cheswold aquifer
- Choptank Formation
- coastal geology
- Columbia Formation
- Federalsburg aquifer
- Frederica aquifer
- Manokin aquifer
- Milford aquifer
- Miocene
- Neogene
- Oligocene
- Omar Formation
- Pliocene
- Pocomoke aquifer
- St. Marys Formation
- stratigraphy
- Sussex County
- upper Pleistocene
- upper Pliocene
- wellhead protection areas
- lower Pliocene
- middle Pleistocene
- Miocene
- Paleogene
- Pleistocene
- Tertiary Period
- upper Miocene
- lower Pleistocene
- middle Miocene
- lower Miocene



First State Geology has been the newsletter of DGS for over 25 years.


