Frenchman Mountain Dolostone: 500 million-year-old Grand
Canyon rock layer finally gets a name. UNLV geologists name
ancient rock layer after Las Vegas mountain that contains
similar strata; research published in the journal Geosphere.
[www.eurekalert.org]

New Study Links Geologic Features of Las Vegas’ Frenchman
Mountain with Grand Canyon. Las Vegas Valley rock layer
matches that of a famous interval of rocks at the Grand Canyon;
findings reported in the Journal Geology.
University of Nevada at LAs Vegas, May 1 , 2020
[www.unlv.edu]

The open access paper is:

Rowland, S.M., Korolev, S., Hagadorn, J.W. and Ghosh, K.,
2023. Frenchman Mountain Dolostone: A new formation of
the Cambrian Tonto Group, Grand Canyon and Basin and
Range, USA. Geosphere.
[pubs.geoscienceworld.org]

Supplemental Material: Frenchman Mountain Dolostone:
A new formation of the Cambrian Tonto Group, Grand Canyon
and Basin and Range, USA, Geological Society of America
[gsapubs.figshare.com]

Another paper is:

Karlstrom, K.E., Mohr, M.T., Schmitz, M.D., Sundberg, F.A.,
Rowland, S.M., Blakey, R., Foster, J.R., Crossey, L.J.,
Dehler, C.M. and Hagadorn, J.W., 2020. Redefining the
Tonto Group of Grand Canyon and recalibrating the Cambrian
time scale. Geology, 48(5), pp.425-430.
[par.nsf.gov]
[pubs.geoscienceworld.org]

Related papers:

Rowland, S.M., 2022, Geology of Frenchman Mountain
and Rainbow Gardens, southern Nevada, USA, in Jiang,
G.Q., and Dehler, C., eds., Field Excursions from Las Vegas,
Nevada: Guides to the 2022 GSA Cordilleran and Rocky
Mountain Joint Section Meeting: Geological Society of
America Field Guide 63, p. 23– 43.

Rowland, S.M., 1987, Paleozoic stratigraphy of Frenchman
Mountain, Clark County, Nevada, in Hill, M.L., ed.,
Cordilleran Section of the Geological Society of
America: Geological Society of America Centennial
Field Guide 1, p. 53– 56.

Hollingsworth, J.S., Sundberg, F.A. and Foster, J.R.,
2011. Cambrian stratigraphy and paleontology of
Northern Arizona and Southern Nevada. Museum of
Northern Arizona Bulletin, 67, pp.1-321.
[www.researchgate.net]
[www.researchgate.net]

PDFs of more trilobites papers.
[www.researchgate.net]

Videos

Wild Speaker Series: The Amazing Geology of Frenchman
Mountain and Rainbow Gardens. Friends Of Nevada Wilderness
[www.youtube.com]

Frenchman Mountain Loop | Bordering Lake Mead National
Recreation Area, Nevada, Las Vegas Area Trails,
[www.youtube.com]

Nevada Trilobites, Frenchman Mountain
[www.youtube.com]

Yours,

Paul H.

"The past is never dead. It's not even past."
William Faulkner, Act 1, Scene III, Requiem for a Nun (1951)