Formasi Bearpaw
| Formasi Bearpaw Jangkauan stratigrafi: Campanian-Maastrichtian, | |
|---|---|
Kontak (panah merah) antara serpih laut Formasi Bearpaw dan pesisir Formasi Horseshoe Canyon. | |
| Jenis | Formasi geologi |
| Unit | Montana Group |
| Garis bawah | Formasi Horseshoe Canyon, Formasi St. Mary River, Formasi Eastend, dan lain-lain |
| Garis atas | Formasi Dinosaur Park, Formasi Judith River |
| Ketebalan | Sampai 350 meter (1.150 ft)[1] |
| Litologi | |
| Utama | Serpih, batu tanah liat |
| Lain-lain | Batu lanau, batu pasir, lapisan konkresi |
| Location | |
| Koordinat | 48°15′0″N 109°30′0″W / 48.25000°N 109.50000°W |
| Kawasan | Alberta, Saskatchewan, Montana |
| Negara | Kanada, Amerika Serikat |
| Nasib | Montana utara sampai Alberta tengah dan Saskatchewan selatan |
| Bagian tipe | |
| Mengambil nama dari | Pegunungan Bear Paw, Montana |
| Dinamai oleh | Hatcher dan Stanton, 1903[2] |
Formasi Bearpaw, juga disebut Serpih Bearpaw, adalah sebuah formasi geologi dari Periode Kapur Akhir (Campanian). Formasi tersebut berada di negara bagian Montana, Amerika Serikat, serta provinsi-provinsi Alberta dan Saskatchewan, Kanada, dan mengambil nama dari Pegunungan Bear Paw di Montana.[2]
Referensi
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