Science Explorer

Exploring: Sedimentary Rocks

Quantitative mineralogy of fine-grained sedimentary rocks: A preliminary look at QEMSCAN®

Modified 2015-04-01
https://pubs.er.usgs.gov/publication/70009731 (HTML Document 15.72 KB)

Quantitative mineralogy of fine-grained sedimentary rocks: A preliminary look at QEMSCAN® By: Quantitative mineralogy of fine-grained sedimentary ... rocks: A preliminary look at QEMSCAN® DOI: 10.1017/S1431927608082858 Volume: 14 Issue: ...

Christopher Holm-Denoma

https://www.usgs.gov/node/719028 (HTML Document 44.06 KB)

Email: cholm-denoma@usgs.gov Phone: 303-236-5454 Fax: 303-236-3200 Lakewood, CO 80225 Biography  

Cordierite Hornfels

https://www.usgs.gov/media/images/cordierite-hornfels (HTML Document 43.29 KB)

Hornfels rocks are metamorphic rocks. They usually start out as sedimentary rocks like sandstone or shale, but then volcanic material pushes up from ... below and bakes the sedimentary rock into a metamorphic one. Hornfels are known for being exceptionally tough and durable. This one is from Chantilly, VA.

Whole rock geochemical data For paleozoic sedimentary rocks of the western Brooks Range, Alaska

Modified 2012-02-02
https://pubs.er.usgs.gov/publication/ofr20041371 (HTML Document 14.86 KB)

Whole rock geochemical data For paleozoic sedimentary rocks of the western Brooks Range, Alaska Open-File Report 2004-1371 John F. Slack, Jeanine M ... . Schmidt, and Julie A. Dumoulin Title: Whole rock geochemical data For paleozoic sedimentary rocks of the western Brooks Range, Alaska Series title: Open-File Report Series number: ...

87Sr/86Sr ratios in some eugeosynclinal sedimentary rocks and their bearing on the origin of granitic magma in orogenic belts

Modified 2012-03-12
https://pubs.er.usgs.gov/publication/70010565 (HTML Document 17.21 KB)

87Sr/86Sr ratios in some eugeosynclinal sedimentary rocks and their bearing on the origin of granitic magma in orogenic belts Earth and Planetary ... samples of eugeosynclinal sedimentary rocks, mostly graywackes, from Oregon and California. These data are compatible with the theory of anataxis of ... eugeosynclinal sedimentary rocks in orogenic belts to produce granitic magmas provided that the melting occurs within several hundreds of m.y. after ... sedimentation. The low (87Sr/86Sr)0 values of the eugeosynclinal sedimentary rocks are related to the significant amounts of volcanogenic detritus ...

Porosity and bulk density, dry and saturated, of sedimentary rocks

Modified 2014-07-16
https://pubs.er.usgs.gov/publication/tei820 (HTML Document 14.90 KB)

Porosity and bulk density, dry and saturated, of sedimentary rocks Trace Elements Investigations 820 Work done on behalf of the U.S. Atomic Energy ... Commission. By: The Publications Warehouse does not have links to digital versions of this publication at this time Download citation as: RIS Porosity and bulk density, dry and saturated, of sedimentary rocks Series title: ...

Proterozoic sedimentary rocks and basins of the Arabian shield and their evolution

Modified 2012-02-02
https://pubs.er.usgs.gov/publication/ofr791189 (HTML Document 14.47 KB)

Proterozoic sedimentary rocks and basins of the Arabian shield and their evolution Open-File Report 79-1189 The Publications Warehouse does not have ... links to digital versions of this publication at this time Download citation as: RIS Title: Proterozoic sedimentary rocks and basins of the Arabian shield and their evolution Series title: Open-File Report Series number: ...

Map showing direction and amount of bedding dip of sedimentary rocks in San Mateo County, California

Modified 2012-02-10
https://pubs.er.usgs.gov/publication/i1257C (HTML Document 17.66 KB)

Map showing direction and amount of bedding dip of sedimentary rocks in San Mateo County, California IMAP 1257-C Download citation as: RIS Title: Map ... showing direction and amount of bedding dip of sedimentary rocks in San Mateo County, California Series title: Scale: 62500 ...

Preliminary report on sedimentary and metamorphic rocks in part of the Romanzof Mountains, Brooks Range, northeastern Alaska

Modified 2012-02-02
https://pubs.er.usgs.gov/publication/ofr59106 (HTML Document 15.33 KB)

Preliminary report on sedimentary and metamorphic rocks in part of the Romanzof Mountains, Brooks Range, northeastern Alaska Open-File Report 59-106 ... Title: Preliminary report on sedimentary and metamorphic rocks in part of the Romanzof Mountains, Brooks Range, northeastern Alaska Series title: Open-File Report Series number: ...

Geochemical and detrital mode evidence for two sources of Early Proterozoic sedimentary rocks from the Tonto Basin Supergroup, central Arizona-reply

Modified 2012-03-12
https://pubs.er.usgs.gov/publication/70018008 (HTML Document 15.44 KB)

Geochemical and detrital mode evidence for two sources of Early Proterozoic sedimentary rocks from the Tonto Basin Supergroup, central Arizona-reply ... Title: Geochemical and detrital mode evidence for two sources of Early Proterozoic sedimentary rocks from the Tonto Basin Supergroup, central Arizona-reply Series title: Sedimentary Geology ... Sedimentary Geology The Publications Warehouse does not have links to digital versions of this publication at this time Download citation as: RIS ...

Kristen Marra

https://www.usgs.gov/node/719798 (HTML Document 41.43 KB)

Lakewood, CO 80225

Christopher Holm-Denoma

https://www.usgs.gov/staff-profiles/christopher-holm-denoma (HTML Document 44.06 KB)

Email: cholm-denoma@usgs.gov Phone: 303-236-5454 Fax: 303-236-3200 Lakewood, CO 80225 Biography  

Kristen Marra

https://www.usgs.gov/staff-profiles/kristen-marra (HTML Document 41.43 KB)

Lakewood, CO 80225

Geology of North Cascades National Park - North Cascades Geology

Modified 2016-12-13
https://geomaps.wr.usgs.gov/parks/noca/nocageol2b.html (HTML Document 5.69 KB)

North Cascades Geology Sedimentary Rocks Sedimentary rocks (bedded argillite and thin beds of sandstone) of the Methow Ocean, north of Devil's Pass ... . Debris carried off the continents and into the oceans by streams and rivers is the most common material that makes up sedimentary rocks. Mud becomes ... mudstone or shale, sand becomes sandstone, and gravel becomes conglomerate (evidently the term "gravelstone" never caught on). Some sedimentary rocks ... argillite. Parts of the North Cascades display almost all the named varieties of sedimentary rocks. On to Metamorphic Rocks ...

Geologic map of the Smyrna Mills quadrangle, Aroostook County, Maine

Modified 2015-09-08
https://pubs.er.usgs.gov/publication/gq1024 (HTML Document 19.85 KB)

sedimentary and volcanic rocks of the Smyrna Mills quadrangle have undergone weak regional metamorphism and, locally, a higher grade of thermal metamorphism ... . Because the original character of the regionally metamorphosed rocks is well preserved, the descriptive nomenclature of. sedimentary and volcanic rocks ... rather than metamorphic rocks is used.  Study Area Geologic map of the Smyrna Mills quadrangle, Aroostook County, Maine Series title: Geologic ...

Ahankashan Copper Gold

https://www.usgs.gov/media/images/ahankashan-copper-gold-0 (HTML Document 43.50 KB)

Light-colored rocks in the foreground overlay a pluton, formed as a plume of magma rose, cooled and deposited minerals in the earth’s crust. Sedimentary rocks dip away from the intrusion.

Folding and faulting of strain-hardening sedimentary rocks

Modified 2012-03-12
https://pubs.er.usgs.gov/publication/70012301 (HTML Document 18.17 KB)

Abstract The question of whether single- or multi-layers of sedimentary rocks will fault or fold when subjected to layer-parallel shortening is ... investigated by means of the theory of elastic-plastic, strain-hardening materials, which should closely describe the properties of sedimentary rocks at high ... unlikely to fold, rather they tend to fault, because contrasts in elasticity and strength properties of sedimentary rocks are low. Amplifications of ... responses of the same idealized material to different conditions. When single-layers of sedimentary rock behave much as strain-hardening materials they are ...

Evolution of sedimentary basins: Powder River Basin

Modified 2014-06-30
https://pubs.er.usgs.gov/publication/b1917 (HTML Document 17.99 KB)

studies of sedimentary rocks and their constituents and the evolution of sedimentary basins, both ancient and modern. Study Area Series title: ...

Divisions of potential fracture permeability, based on distribution of structures and linear features in sedimentary rocks, northern Great Plains-Rocky Mountains region of Montana, North Dakota, South Dakota, Wyoming, and northern Nebraska

Modified 2016-08-23
https://pubs.er.usgs.gov/publication/i1687 (HTML Document 21.50 KB)

Divisions of potential fracture permeability, based on distribution of structures and linear features in sedimentary rocks, northern Great Plains ... fracture traces in sedimentary rocks of Cenozoic to Precambrian Age - Eastern and central North and South Dakota and northern Nebraska include only ... by Precambrian sedimentary rocks.  Study Area Divisions of potential fracture permeability, based on distribution of structures and linear features in ... sedimentary rocks, northern Great Plains-Rocky Mountains region of Montana, North Dakota, South Dakota, Wyoming, and northern Nebraska Series title ...

Divisions of potential fracture permeability, based on distribution of structures and lineaments, in sedimentary rocks of the Rocky Mountains-High Plains region, Western United States

Modified 2012-02-02
https://pubs.er.usgs.gov/publication/wri854091 (HTML Document 17.48 KB)

Divisions of potential fracture permeability, based on distribution of structures and lineaments, in sedimentary rocks of the Rocky Mountains-High ... permeability is important in sedimentary rocks that otherwise transmit water slowly, particularly limestone, dolomite, and fine-grained sandstone. A map of ... geologic structures and lineaments that affect the distribution of fracture traces in the sedimentary rocks of the High Plains and some adjacent areas ... Divisions of potential fracture permeability, based on distribution of structures and lineaments, in sedimentary rocks of the Rocky Mountains-High ...