Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
ash  |
|---|
| ash clouds | |
|---|---|
| UF | clouds, ash |
| dust clouds (volcanic) | |
| eruption clouds | |
| volcanic clouds | |
| RT | volcanism |
| atmosphere | |
| aircraft | |
| geologic hazards | |
| volcanic risk | |
| climate | |
| stratosphere | |
| volcanology | |
| SN | Before 1985, also search dust clouds and volcanology. |
| ash content | |
|---|---|
| RT | analysis |
| ash | |
| coal | |
| combustion | |
| energy sources | |
| incineration | |
| peat | |
| quality control | |
| SN | As of 1998, restricted to use for incombustible material. For other uses, see volcanic ash. |
| ash falls | |
|---|---|
| RT | fallout |
| pyroclastics | |
| volcanic ash | |
| volcaniclastics | |
| volcanism | |
| volcanoes | |
| volcanology | |
| Ash H |
|---|
| Ash Hollow Formation | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Cenozoic | |
| ...Neogene | |
| ....Pliocene | |
| .....Ash Hollow Formation | |
| RT | Wyoming |
| Nebraska | |
| Kansas | |
| South Dakota | |
| Ogallala Formation | |
| SN | In Ogallala Formation. W Kansas, W Nebraska, South Dakota, and SE Wyoming. |
| ash-flow tuff | |
|---|---|
| BT | igneous rocks |
| .volcanic rocks | |
| ..pyroclastics | |
| ...ash-flow tuff | |
| RT | volcanic ash |
| tuff | |
| ash flows | |
| ignimbrite | |
| pyroclastic flows | |
| Ashe County North Carolina | |
|---|---|
| BT | United States |
| .North Carolina | |
| ..Ashe County North Carolina | |
| Ashe Formation | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Paleozoic | |
| ...lower Paleozoic | |
| ....Ashe Formation | |
| RT | Virginia |
| North Carolina | |
| Tennessee | |
| SN | NW North Carolina, E Tennessee, and SW Virginia. |
| Ashgillian | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Paleozoic | |
| ...Ordovician | |
| ....Upper Ordovician | |
| .....Ashgillian | |
| NT | Hirnantian |
| RT | Bala |
| SN | Europe. Upper Caradocian, below Llandoverian (Silurian). |
| Ashio Japan | |
|---|---|
| BT | nshu |
| .Ashio Japan | |
| RT | Gumma Japan |
| Tochigi Japan | |
| SN | Town on border of Tochigi and Gumma prefectures, central Honshu. |
| Ashio Mine | |
|---|---|
| BT | nshu |
| .Ashio Mine | |
| RT | mines |
| copper ores | |
| Gumma Japan | |
| Tochigi Japan | |
| SN | Before 1993, also search Ashio copper mines. Indexed with prefectures and commodity as applicable. Added to Thesaurus in 1993. |
| Ashkhabad Turkmenia | |
|---|---|
| BT | Asia |
| .Turkmenia | |
| ..Ashkhabad Turkmenia | |
| NT | Cheleken Turkmenia |
| Darvaza Turkmenia | |
| SN | Oblast and city in S Turkmenia near the Iranian border. This term has multiple hierarchies. |
| Ashland County Ohio | |
|---|---|
| BT | United States |
| .Ohio | |
| ..Ashland County Ohio | |
| SN | N central Ohio. |
| Ashland County Wisconsin | |
|---|---|
| BT | United States |
| .Wisconsin | |
| ..Ashland County Wisconsin | |
| SN | Extreme N Wisconsin. |
| Ashley County Arkansas | |
|---|---|
| BT | United States |
| .Arkansas | |
| ..Ashley County Arkansas | |
| Ashley River Fault | |
|---|---|
| BT | United States |
| .South Carolina | |
| ..Charleston County South Carolina | |
| ...Ashley River Fault | |
| SN | Charleston region, SE South Carolina. Added to Thesaurus in 1989. |
| Ashmore Meteorite | |
|---|---|
| BT | meteorites |
| .stony meteorites | |
| ..chondrites | |
| ...Ashmore Meteorite | |
| RT | Texas |
| Gaines County Texas | |
| SN | Impact in Gaines County, W Texas. Before 1981, also search Ashmore AND meteorites. Added to Thesaurus in 1981. |
| Ashtabula County Ohio | |
|---|---|
| BT | United States |
| .Ohio | |
| ..Ashtabula County Ohio | |
| SN | NE Ohio. |
| ashtonite | |
|---|---|
| USE | mordenite |