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MJ-1 - Maéjima Fm, Okayama Prefecture, Japan
| Lat/Long (Decimal) | 34.6,134.167 |
|---|---|
| Co-ordinates Derivation | estimated from map |
| Mindat.org Region (for given coordinates) | Okayama Prefecture, Japan |
Collections
| Collection | Reference | Stratigraphic Name | Comments | Lithology | Age |
|---|---|---|---|---|---|
| MJ-1 - Maéjima Fm | Matsubara T. (2002) | Maéjima | STRATIGRAPHIC RELATIONS: From Maéjima Fm (also referred to as Maeshima Fm) overlies pre-Tertiary plutonic rocks. THICKNESS: From bed of less than 1 m in thickness within 15 m thick section. AGE: Poorly constrained and debated, although a range of evidence points to a Late Eocene age. Sr isotopes suggest an age of Eocene or older, while foraminiferal and molluscan biostratigraphy points to an Eocene, possibly Late Eocene age. For a long time the Maéjima Fm was considered to be Miocene in age. STR | conglomerate | 37.2 - 33.9 Ma Paleogene |
| MJ-2a - Maéjima Fm | Matsubara T. (2002) | Maéjima | STRATIGRAPHIC RELATIONS: From Maéjima Fm (also referred to as Maeshima Fm) overlies pre-Tertiary plutonic rocks. THICKNESS: From bed of less than 1 m in thickness within 10 m thick section. AGE: Poorly constrained and debated, although a range of evidence points to a Late Eocene age. Sr isotopes suggest an age of Eocene or older, while foraminiferal and molluscan biostratigraphy points to an Eocene, possibly Late Eocene age. For a long time the Maéjima Fm was considered to be Miocene in age. STR | conglomerate | 37.2 - 33.9 Ma Paleogene |
| MJ-2b - Maéjima Fm | Matsubara T. (2002) | Maéjima | STRATIGRAPHIC RELATIONS: From Maéjima Fm (also referred to as Maeshima Fm) overlies pre-Tertiary plutonic rocks. THICKNESS: From bed of less than 1 m in thickness within 15 m thick section. AGE: Poorly constrained and debated, although a range of evidence points to a Late Eocene age. Sr isotopes suggest an age of Eocene or older, while foraminiferal and molluscan biostratigraphy points to an Eocene, possibly Late Eocene age. For a long time the Maéjima Fm was considered to be Miocene in age. STR | conglomerate | 37.2 - 33.9 Ma Paleogene |
| MJ-2c - Maéjima Fm | Matsubara T. (2002) | Maéjima | STRATIGRAPHIC RELATIONS: From Maéjima Fm (also referred to as Maeshima Fm) overlies pre-Tertiary plutonic rocks. THICKNESS: From bed of less than 1 m in thickness within 15 m thick section. AGE: Poorly constrained and debated, although a range of evidence points to a Late Eocene age. Sr isotopes suggest an age of Eocene or older, while foraminiferal and molluscan biostratigraphy points to an Eocene, possibly Late Eocene age. For a long time the Maéjima Fm was considered to be Miocene in age. STR | conglomerate | 37.2 - 33.9 Ma Paleogene |
| MJ-3 - Maéjima Fm | Matsubara T. (2002) | Maéjima | STRATIGRAPHIC RELATIONS: From Maéjima Fm (also referred to as Maeshima Fm) overlies pre-Tertiary plutonic rocks. THICKNESS: From bed of less than 1 m in thickness within 10 m thick section. AGE: Poorly constrained and debated, although a range of evidence points to a Late Eocene age. Sr isotopes suggest an age of Eocene or older, while foraminiferal and molluscan biostratigraphy points to an Eocene, possibly Late Eocene age. For a long time the Maéjima Fm was considered to be Miocene in age. STR | conglomerate | 37.2 - 33.9 Ma Paleogene |
| MJ-4 - Maéjima Fm | Matsubara T. (2002) | Maéjima | STRATIGRAPHIC RELATIONS: From Maéjima Fm (also referred to as Maeshima Fm) overlies pre-Tertiary plutonic rocks. THICKNESS: From bed of less than 1 m in thickness within 10 m thick section. AGE: Poorly constrained and debated, although a range of evidence points to a Late Eocene age. Sr isotopes suggest an age of Eocene or older, while foraminiferal and molluscan biostratigraphy points to an Eocene, possibly Late Eocene age. For a long time the Maéjima Fm was considered to be Miocene in age. STR | sandstone | 37.2 - 33.9 Ma Paleogene |
| MJ-5 - Maéjima Fm | Matsubara T. (2002) | Maéjima | STRATIGRAPHIC RELATIONS: From Maéjima Fm (also referred to as Maeshima Fm) overlies pre-Tertiary plutonic rocks. THICKNESS: From bed of less than 1 m in thickness within 10 m thick section. AGE: Poorly constrained and debated, although a range of evidence points to a Late Eocene age. Sr isotopes suggest an age of Eocene or older, while foraminiferal and molluscan biostratigraphy points to an Eocene, possibly Late Eocene age. For a long time the Maéjima Fm was considered to be Miocene in age. STR | sandstone | 37.2 - 33.9 Ma Paleogene |
| MJ-6 - Maéjima Fm | Matsubara T. (2002) | Maéjima | STRATIGRAPHIC RELATIONS: From Maéjima Fm (also referred to as Maeshima Fm) overlies pre-Tertiary plutonic rocks. THICKNESS: From bed of less than 1 m in thickness within 10 m thick section. AGE: Poorly constrained and debated, although a range of evidence points to a Late Eocene age. Sr isotopes suggest an age of Eocene or older, while foraminiferal and molluscan biostratigraphy points to an Eocene, possibly Late Eocene age. For a long time the Maéjima Fm was considered to be Miocene in age. STR | sandstone | 37.2 - 33.9 Ma Paleogene |
Recorded Fossils
References
| Matsubara T. (2002) Molluscan fauna of the "Miocene" Maéjima Formation in Maéjima Island, Okayama Prefecture, southwest Japan, Paleontological Research 6 2, 127-145 |
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
