Formasi Bearpaw

Formasi Bearpaw
Jangkauan stratigrafi: Campanian-Maastrichtian, 75–72 jtyl
Kontak (panah merah) antara serpih laut Formasi Bearpaw dan pesisir Formasi Horseshoe Canyon.
JenisFormasi geologi
UnitMontana Group
Garis bawahFormasi Horseshoe Canyon, Formasi St. Mary River, Formasi Eastend, dan lain-lain
Garis atasFormasi Dinosaur Park,
Formasi Judith River
KetebalanSampai 350 meter (1.150 ft)[1]
Litologi
UtamaSerpih, batu tanah liat
Lain-lainBatu lanau, batu pasir, lapisan konkresi
Location
Koordinat48°15′0″N 109°30′0″W / 48.25000°N 109.50000°W / 48.25000; -109.50000 (Bearpaw Formation)
KawasanAlberta, Saskatchewan, Montana
NegaraKanada, Amerika Serikat
NasibMontana utara sampai Alberta tengah dan Saskatchewan selatan
Bagian tipe
Mengambil nama dariPegunungan Bear Paw, Montana
Dinamai olehHatcher 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

  1. ^ Kesalahan pengutipan: Tanda <ref> tidak sah; tidak ditemukan teks untuk ref bernama Glass
  2. ^ a b Hatcher, J.B. and Stanton, T.W., 1903. The stratigraphic position of the Judith River beds and their correlation with the Belly River beds. Science, no. 5, v. 18, p. 211-212.

Templat:Western Canadian Sedimentary Basin

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