Tuesday, July 10, 2018

Road Song: Stairway to Heaven

Led Zeppelin: Stairway to Heaven (lyrics)
Album: Led Zeppelin IV, 1971

I've don't often think of this song as a road song, but it does mention "the road" twice and "two paths" once, so is definitely a road song by any definition. It's also a gold song, for any of you miners out there.

Tuesday, June 19, 2018

Things You Find in the Field: Sulfur at Sulphur

I recently drove across northern Nevada from Winnemucca to Gerlach to the NV-CA state line in the upper reaches of Smoke Creek, and while the temperature was holding steady at about 89°F, I stopped at Sulphur to take a few quick pictures. It turns out that Sulphur is a bigger place than I had realized on my several stops through the area, and so I spent a little extra time there.

In the first photo, you can see the roof of a building on the ground—this roof has been photographed many times and is easy to find on the internet—and you can see a well-built cabin. I'm not sure where exactly the cabin came from, because it, and the sign, were not present the last time I drove through the area, which was last May (2017). Although I didn't get photos last year showing this precise area, I do have photos from 2013 without sign or cabin, and Google also currently shows the area without either.
The sign says the town was at least 400 acres in size (about 0.625 square miles), and that claims for sulfur were first filed in 1875.
I wandered over to take a closer look at the "new" cabin, which has bars on doors and windows to deter entry.
An interior shot.

Then, having ventured farther than I expected when I first stopped, I decided to brave the slightly above average temperature to wander around. I used only my out-of-date phone for these shots; the photos turned out better than expected. 
Looking east toward the barely active Hycroft gold mine.
Upside down washer?
Remains of a root cellar.
Looking west toward the Black Rock Desert—not visible for the raised railroad bed—we can see the many remains of Sulphur in the foreground and the Granite Range near Gerlach (left) and the Calico Mountains (right) in the blueish background.
Sulfur at Sulphur!
Old bed springs.
Partly shot up old stove.
And then it was time to move on. I had 44 miles to get to Gerlach, and many more miles beyond that.

Strangely enough, very few of the Nevada or western ghost town sites have any information about the place; those with the most info are (1) the Sulphur and Sulphur Mining District wikis by the Friends of the Black Rock Desert, (2) the Black Rock Explorers Society's page on Sulphur, (3) a blurb at the Winnemucca Convention & Visitor's Authority, and (4) an article at Nevada Magazine. I'm not sure who has added the new sign and moved in the "new" old cabin (actually, the signs there are marked National Conservation Lands, part of BLM, and the sign says "Funded by the Hycroft Mining Corporation") but upon my Google search for new sign at Sulphur Nevada, the 6th hit is Zillow reporting it has 0 homes for sale in Sulphur, NV. I'll henceforth be excluding Sulphur from my new home searches!


Tuesday, May 29, 2018

#fieldworkfail BINGO

This space has been fairly quiet this year, and while I'd like to blame my lack of posting on work, the truth is that most of the blame falls on ye olde personal life, which has been in a dumpster since early November. But rather than going into the sordid details here, I'm going to post on something that was big on Twitter a couple months ago, thereby continuing my present trend of running behind (on the blog — thankfully not elsewhere).

Yes, that's it: #fieldworkfail BINGO. I present an unadorned, unplayed BINGO card:
It was Kat Black who presented this Bingo card to fieldwork-Twitter (largely but not entirely composed of biologists and geologists of various flavors), back on the 30th of March. Most of the entire ensuing Twitter convo can be read here (though I don't know how long Twitter-search keeps things available, so maybe the link will fail in the future).

Thinking about my field work history in some detail, I created this BINGO card from my experiences. As you can see, I did get a BINGO. Without the free space in the middle, though, I wouldn't have made it.
By way of a little explanation, I've added a few details in the next version of the same Bingo card:
You might notice that I replaced "Animal attack" with "Plant attack" and added an extra mark. While I've been stared at closely by 3 to 4 coyotes at once and also by a protective stallion once or twice —  the former causing me to unnecessarily grab my rock hammer and the latter causing me to give up on that canyon for that day —  I've never been attacked. I have, however, been mercilessly attacked by wild cholla balls, which definitely have a mind of their own and can be quite persistent in trying to attach themselves to parts of your body, especially feet and legs.

(I've had a few close encounters with wild cats — mountain lions, bobcats, and a possible jaguar — and I've come closer than I prefer to snakes several times, and closer than they prefer judging by their rattles or swift slitherings away from me — but these were merely close encounters, with none of them resulting in anything resembling an attack.)

In my line of work, especially when doing mineral exploration recon, a moderately routine hazard not listed would be getting shot at or being run off a property with a gun, which has happened to me once (American Girl), maybe twice or thrice —  although the second time was unclear and so probably doesn't count (Old Woman Mountains), and the third time was merely a threat without any visible gun brandishment (Tumco). In addition, there can be various helicopter-related hazards, the least hazardous of which might be being left out by the helicopter pilot, who for various reasons, including forgetting part of the crew (me!), might not pick you up —  a story that was told in brief here.

Tuesday, May 22, 2018

Orbicular Granite

I've been meaning to get to this post for sometime, seeing as how the trip was made in the summer of 2017, and the post related to this one, set earlier in the same day and not all that far back up the road, posted in September of last year. What we'll see here is some unexpected orbicular granite, found by MOH.
In this post, you'll see several pictures of orbicular granite, which in this case is composed of orbicules with dark centers and lighter outer rims.
I didn't collect a single specimen, partly because the outcrop didn't lend itself to being hammered on, partly because it seemed like the single outcrop should be left alone.

The inner dark center of most orbicules consists of black, interlocking and sometimes radial crystals of probable amphibole. It's fairly common that the next and only other layer is the outer rim of nearly white feldspar (not sure what kind), but in some cases (above and below) the second ring is composed of a white and black ring of intergrown feldspar and mafic mineral (pyroxene or amphibole are most likely), with white feldspar forming a third ring outside the second ring. The outer light-colored ring sometimes shows hints of actually consisting of as many as four or more separate feldspar-dominated rings or layers.
I'm not really up on the formation of orbicules, so if anyone with more knowledge than I wants to jump into the comments and explain, that would be great.
The discoverer of this small exposure provides a bit of scale for the orbicules, including a few protruding like eggs from the rock mass. It looks like many of the small spaces between the larger, often touching orbicules contain smaller orbs.
This particular orbicule appears to have at least three identifiable outer feldspar shells, set apart by somewhat vague mafic rings.
Bonus grebe.

I'm not giving details of the location of this tiny outcrop in order to preserve it. I didn't find anything about this locality by Googling, so this might be a new discovery.

Friday, March 23, 2018

Links: Field tripping in Nevada, mostly along I-80 and Highway 50

A River Runs through It [link to download], ESW 2016, E-59 NBMG: Truckee River Reno to Pyramid Lake

1915 Pleasant Valley earthquake centennial field trip guidebook: A public field trip to visit the largest earthquake in Nevada's history [link to download] E-58 NBMG: 50 miles south of Winnemucca

Fire and Ice—Geology of the Mount Rose quadrangle, Lake Tahoe, and the Carson Range [link to download pdf], ESW 2015, E-57 NBMG: Galena Creek Visitor Center to Incline Village

Carson Rocks! A Sesquicentennial Celebration of some of our Capital City's Geological High Points [link to download pdf], ESW 2014, E-56 NBMG: around Carson City

Geo- and Eco-Mapping around DRI (The Great Altered Rock Walking Tour) [link download pdf], 2014, E-55, NBMG: around DRI.

Mapping the Geology around the Desert Research Institute and Truckee Meadows Community College [pdf], ESW 2013, E-53, NBMG: around DRI.

"Tuff All Over": Exploring Faulted Volcanic Terrain in the Painted Hills, Virginia Mountains, West of Pyramid Lake [pdf], ESW 2012, E-52, NBMG: near Pyramid Lake.

"Life's a Beach": In Search of Ancient Shorelines and Volcanoes in the Grimes Point and Lahontan Mountains Area [pdf], ESW 2011, E-51, NBMG: near Fallon.

Geo-tripping in Nevada [pdf], NBMG map guide to many or most of the NBMG field trip guides in Nevada through E-50.

In search of Tufa, Tuff, and Tough Rocks [link to download pdf], ESW 2010, E-50, NBMG: stops are east of Pyramid Lake; trip guide includes Reno to Pyramid Lake, Pyramid Lake to Wadsworth, Pyramid Lake to Brady's Hot Springs, Brady's Hot Springs to Reno.

Digging Deeper into the Comstock [pdf], ESW 2009, E-48, NBMG: Reno to Gold Hill.

No Child Left Inside: A field trip for Families and Rockhounds [pdf], ESW 2008, E-47, NBMG: stops are near Fallon, east of Fallon, north of Fallon, and in the Truckee River Canyon along I-80; road guide runs from Reno to east of Fallon, Fallon to Trinity (junction of I-80 and 95), and Trinity to Reno.

Taking the Pulse of the Earth [link to download pdf], ESW 2007, E-46, NBMG: south of Reno (Slide Mountain, Steamboat, and Virginia Foothills; the latter two not available to public).

Rockin' Along the River [pdf], ESW 2006, E-45 NMBG: Truckee River Verdi to Wadsworth

The great Highway 50 rock tour [link to download], ESW 2005, E-44 NBMG: Fallon to Middlegate

The Frenchman lake frolic [link to download], ESW 2004, E-43 NBMG: Frenchman Lake area, California, west of NV-CA border.

Get out, stay out, and stay alive [link to download], ESW 2003, E-42 NBMG: north of Reno towards Pyramid Lake.

In search of "the right tuff" but you can just "take it for granite" [link to download], ESW 2002, E-41 NBMG: north of Reno and to the west toward northern end of Red Rock Road.

Fossils and Ancient Lakes [link to download pdf], ESW 2001 field trip #2, E-40, NBMG: fossils near Nightingale.

Peavine Peak: Geology, plants, and mining history [link to download], ESW 2001 field trip #1, E-39, NBMG: Peavine.

Exploring east of the summit: A field trip guide to Steamboat Springs, Lake Tahoe, and the Comstock area [link to download pdf], ESW 2000, E-38 NBMG: Steamboat Springs, Lake Tahoe, Comstock.

Geology along America's loneliest highway [link to download pdf], ESW 2000 E-37 NBMG: Carson to Sand Mountain.

What's shakin' in the neighborhood? -- Road log [link to download pdf], ESW 1999 field trip #2, E-34 NBMG:  Reno, Mt. Rose fan/pediment, to Genoa fault scarp.

Turbulent times in the Truckee Meadows [link to download pdf], ESW 1999 field trip #1, E-33 NBMG: UNR to Verdi to Crystal Peak Mine.

Ancient lakes and volcanoes near Fallon: Field trip for families and rockhounds [link to download pdf], ESW 1998, E-28 NBMG: Fallon, Grimes Point, Soda Lake.

Link to NBMG's entire Educational series; most (all?) are available to download.

INQUA 2003 - Elko to Reno, Wadsworth Amp, Lone Mtn hwy 50, Reheis - no viewing online at Google books

Geothermal energy helps power Nevada | Elko Daily Free Press - Brady's Hot Spring, Beowawe, and "Hot Hole" in Elko

The Stories Behind I-80s Exit Sign Names - Part 1 | Backyard Traveler by Rich Moreno - various info about signs and areas, e.g., Nightingale and Brady's Hot Springs

Touring California and Nevada hot springs | Matt C. Bischoff - Brady's Hot Springs reaches 209*F (and other tidbits)