Search Results

Sample Type is Sedimentary › Sedimentary Structures

262 records | Download
IGSN Sample Type Notes Location Number Thin Sections Storage Location
GRD00K4S0 Lamination Noonday dolomite (IBEX facies) Cap carbonate California 0 Ritter 154, 18 R
GRD00L4S0 Sedimentary Structures Johnny fm, Noonday Mine California 0 Ritter 154, 2 F
GRD00M2S0 Varves Original label: Unita quartzite. Utah 1 Ritter 154, 17 Q
GRD00N7S0 Bedding Original label: Pottsville cross-bedded, carbonaceous sandstone. Coll. No. P.T. 383i. May 1951. Pennsylvania 1 Ritter 154, 17 Q
GRD00OHS0 Sedimentary Structures Johnny Formation, Noonday Mine California 0 Ritter 154, 22 K
GRD00QCS0 Hardground Hardground, Late Pliensb. United Kingdom 1 Ritter 154, 17 O
GRD00QGS0 Ripples red fine sandstone with ripples, Hakatai Fm., two samples Arizona 0 Ritter 154, 17 Q
GRD00QHS0 Ripples Original label: ripple marks in sandstone, Vasquez Fm., Miocene, collected near rock crusher. California 0 Ritter 154, 17 Q
GRD00QIS0 Varves Green varved tillite. Gowganda Fm. 2.2 Ga. Proterozoic Michigan 0 Ritter 154, 17 Q
GRD00QKS0 Mud Cracks Red mudstone with thin mudcracks. Large sample. Wyoming 0 Ritter 154, 22 M
GRD00QKS1 Mud Cracks Large sample of red mudstone with thin mud cracks. Wyoming 0 Ritter 154, 22 L
GRD00QKS2 Mud Cracks Small sample of red mudstone with thin mudcracks. Wyoming 0 Ritter 154, 22 M
GRD00QLS0 Burrows Sandstone with Pholad clam boring fills Mexico 0 Ritter 154, 17 Q
GRD00QMS0 Wrinkle Marks Cadiz shale member of the Cararra Formation, Middle Cambrian; Two hand samples. See also N-190, N139-2, and S-691 (all are Cadiz members). California 0 Ritter 154, 2 B
GRD00QNS0 Wrinkle Marks Original label: Wood Canyon formation, Pre-Cambrian boundary. California 0 Ritter 154, 17 Q
GRD00QOS0 Mud Cracks Mudcracks preserved beneath the dated tuff (14.8 Ma); Barstow Formation, near base of upper member - South limb of syncline California 0 Ritter 154, 17 P
GRD00QPS0 Trackways Rusophyeus and trilobite scratch marks, Cadiz Shale Member, Cararra Formation. See also N-190, S-683, and S-691 (all are Cadiz members). California 0 Ritter 154, 17 Q
GRD00QRS0 Crossbedding quartz sandstone, cross bedding, Johnnie Fm., Late Precambrian. California 0 Ritter 154, 22 M
GRD00QSS0 Graded Beds graded bed, fining upward unknown 0 Ritter 154, 17 R
GRD00QWS0 Bedding Large sample. Original label: Bedded tuff with Columbia Plateau lava, See also 110-T23, July 1954. Oregon 0 Ritter 154, 17 R
GRD00QXS0 Ripples Cadiz formation - Abone Chamblina Marble. See also S-683, N139-2, and S-691 (all are Cadiz members). California 0 Ritter 154, 17 R
GRD00RNS0 Compaction Features Lenticular sandy material between two finer-grained, laminated layers. Thin styolites in sandy material in thin section. Original label: Moenkopi formation: NW 1/4 sec 36, R573, T 21</=, Mountain Spring Quad. Nevada 2 Ritter 154, 22 L
GRD00UDS0 Lamination Noonday Dolomite, IBEX Deep water facies, Neoproterozoic, Cap Carbonate California 0 Ritter 154, 22 J
GRD00UFS0 Sedimentary Structures Beck Springs Dolomite California 0 Ritter 154, 17 Q
GRD00UHS0 Lamination White stone band in Kimmeridgian (nanno-rich) (original description). White lenses of mud/clay. United Kingdom 0 Ritter 154, 18 Q
GRD00UJS0 Ripples Pentacrinus-bearing limestone displaying ripplemarks. Wyoming 1 Ritter 154, 18 Q
GRD00UKS0 Graded Beds Clastic limestone becoming finer grained upward. Original label: Coll. No. 101b, case: 5655, Feb 1951, Stop 1, GSA Tour. New Mexico 3 Ritter 154, 18 Q
GRD00VPS0 Replacement Features encrinal limestone, Lockport Dolomite, Silurian; Thin section contains dolomite rhombs New York 1 Ritter 154, 23 K
GRD00VSS0 Replacement Features Original label: Cherty limestone, Onandaga Limestone, Devonian. New York 1 Ritter 154, 23 K
GRD00VTS0 Replacement Features Siliceous oolite, Gatesburg Fm., Cambrian. Pennsylvania 2 Ritter 154, 18 O