disconformity

Delaware Limestone over Columbus Limestone (Middle Devonian; Indian Village Canyon, Columbus, Ohio, USA) 5
by James St. John

Shinarump Conglomerate over De Chelly Sandstone (Upper Triassic over Lower Permian; Canyon de Chelly, Arizona, USA) 26
by James St. John

Bleeding unconformity (Chattanooga Shale over Cumberland Formation; Burkesville West Rt. 90 roadcut, Kentucky, USA) 4
by James St. John

Libertad de expresión
by Metsuke.com

Centerville Shale (Ohio Brush Creek South roadcut, Ohio, USA)
by James St. John

Delaware Limestone (Middle Devonian; Indian Village Canyon, Columbus, Ohio, USA) 1
by James St. John

Fossiliferous limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 21
by James St. John

Ordovician-Silurian unconformity section (Dunkinsville Southwest roadcut, Ohio, USA) 4
by James St. John

Rippled sandstone (Rawnsley Quartzite, Ediacaran; Three Sisters Range, South Australia) 2
by James St. John

Pottsville Group over Maxville Limestone (Pleasant Valley Limestone Quarry, Muskingum County, Ohio, USA) 6
by James St. John

Moellerina greenei (fossil charophyte oogonia) in limestone (Columbus Limestone, Middle Devonian; Kelleys Island, Lake Erie, Ohio, USA)
by James St. John

Burrowed & rippled sandstone (Parachilna Formation, Lower Cambrian; Three Sisters Range, South Australia) 2
by James St. John

Shinarump Conglomerate (Upper Triassic; Canyon de Chelly, Arizona, USA) 3
by James St. John

Boyle Formation over the Estill Shale (Devonian over Silurian; Drowning Creek West roadcut, Madison County, Kentucky, USA) 2
by James St. John

Pottsville Group over Maxville Limestone (Pleasant Valley Limestone Quarry, Muskingum County, Ohio, USA) 5
by James St. John

Favositid coral (Marblehead Member, Columbus Limestone, Middle Devonian; lakehore outcrop near Marblehead Lighthouse, Ottawa County, Ohio, USA) 2
by James St. John

Precambrian-Cambrian nonconformity (Manitou Limetone over Peerless Formation over Sawatch Sandstone over Pikes Peak Granite; Manitou Avenue roadcut, Manitou Springs, Colorado, USA) 2
by James St. John

Ordovician-Silurian unconformity section (Dunkinsville Southwest roadcut, Ohio, USA) 3
by James St. John

Pebbly sandstones over mudshales (Mississippian-Pennsylvanian unconformity; Mary Campbell Cave, Cuyahoga Gorge, Cuyahoga Falls, Ohio, USA) 1
by James St. John

Cowbell Member (Borden Formation, Lower Mississippian; Clack Mountain Road Outcrop, south of Morehead, Kentucky, USA) 1
by James St. John

Pottsville Group over Maxville Limestone (Black 17 Mine, White Cottage, Ohio, USA) 21
by James St. John

Pottsville Group over Maxville Limestone (Black 17 Mine, White Cottage, Ohio, USA) 26
by James St. John

Pottsville Group over Maxville Limestone (Black 17 Mine, White Cottage, Ohio, USA) 27
by James St. John

El gobierno porteño le reclama a Cristina (imagen) el depósito de $ 30 millones por los subsidios atrasados de febrero
by Nicolás Eduardo Feredjian

Pottsville Group over Maxville Limestone (Black 17 Mine, White Cottage, Ohio, USA) 24
by James St. John

Pottsville Group over Maxville Limestone (Black 17 Mine, White Cottage, Ohio, USA) 17
by James St. John

No me gustó el regalo
by Julikeishon

Fort Payne Formation-Chattanooga Shale-Cumberland Formation; Burkesville West Rt. 90 roadcut, Kentucky, USA) 3
by James St. John

Fossiliferous limestone (Delaware Limestone, Middle Devonian; Olentangy River at Lazarus Run confluence, Delaware County, Ohio, USA) 15
by James St. John

Columbus Limestone (Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 1
by James St. John

Pottsville Group over Maxville Limestone (Pleasant Valley Limestone Quarry, Muskingum County, Ohio, USA) 2
by James St. John

Weathered, oxidized pyrite (Columbus Limestone or Delaware Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 4
by James St. John

Pottsville Group over Maxville Limestone (Black 17 Mine, White Cottage, Ohio, USA) 20
by James St. John

Delaware Limestone over Columbus Limestone (Middle Devonian; Indian Village Canyon, Columbus, Ohio, USA) 6
by James St. John

Sharon Sandstone (Lower Pennsylvanian; Mary Campbell Cave, Cuyahoga Gorge, Cuyahoga Falls, Ohio, USA) 2
by James St. John

Moellerina greenei (fossil charophyte oogonia) in fossiliferous limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 1
by James St. John

Mississippian-Pennsylvanian unconformity ("Sharon" Conglomerate over Logan Formation; Jackson North roadcut, Ohio, USA) 19
by James St. John

Pottsville Group over Maxville Limestone (Black 17 Mine, White Cottage, Ohio, USA) 16
by James St. John

Fossiliferous limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 22
by James St. John

Fort Payne Formation-Chattanooga Shale-Cumberland Formation; Burkesville West Rt. 90 roadcut, Kentucky, USA) 2
by James St. John

Como era de suponerse, finalmente sumaron el nombre de Pugliese a la estación Malabia (ver fotos)
by Nicolás Eduardo Feredjian

Fossiliferous limestone (Columbus Limestone, Middle Devonian; Olentangy River at Lazarus Run confluence, Delaware County, Ohio, USA) 1
by James St. John

Ironstone concretion (lower Pottsville Group, Lower Pennsylvanian; Pleasant Valley Limestone Quarry, Muskingum County, Ohio, USA) 3
by James St. John

Columbus Limestone (Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 11
by James St. John

Black chert nodules (Delaware Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 6
by James St. John

Pottsville Group over Maxville Limestone (Black 17 Mine, White Cottage, Ohio, USA) 23
by James St. John

Pottsville Group over Maxville Limestone (East Fultonham Pit, Muskingum County, Ohio, USA) 17
by James St. John

Shinarump Conglomerate over De Chelly Sandstone (Upper Triassic over Lower Permian; Canyon de Chelly, Arizona, USA) 4
by James St. John

Ohio Shale over Olentangy Shale (Upper Devonian; Lazarus Run, Delaware County, Ohio, USA)
by James St. John

Fort Payne Formation-Chattanooga Shale-Cumberland Formation; Burkesville West Rt. 90 roadcut, Kentucky, USA) 1
by James St. John

Shinarump Conglomerate over De Chelly Sandstone (Upper Triassic over Lower Permian; Canyon de Chelly, Arizona, USA) 7
by James St. John

Fossiliferous limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 20
by James St. John

Mississippian-Pennsylvanian unconformity ("Sharon" Conglomerate over Logan Formation; Jackson North roadcut, Ohio, USA) 26
by James St. John

Fossil fish bones in limestone (basal Delaware Limestone, Middle Devonian; eastern bank of the Scioto River, Columbus, Ohio, USA) 2
by James St. John

Shinarump Conglomerate over De Chelly Sandstone (Upper Triassic over Lower Permian; Canyon de Chelly, Arizona, USA) 19
by James St. John

Weathered, oxidized pyrite (Columbus Limestone or Delaware Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 3
by James St. John

Delaware Limestone over Columbus Limestone (Middle Devonian; Indian Village Canyon, Columbus, Ohio, USA) 4
by James St. John

Columbus Limestone (Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 3
by James St. John

Mississippian-Pennsylvanian unconformity ("Sharon" Conglomerate over Logan Formation; Jackson North roadcut, Ohio, USA) 13
by James St. John

Ordovician-Silurian unconformity section (Dunkinsville Southwest roadcut, Ohio, USA) 5
by James St. John