(Mt. Taylor)
Writing this a week after it happened, so I will try to keep it as accurate as possible :)
Today we went to the Mt. Taylor surrounding area to look at more deposits of obsidian. We hit two different sources: East Grants Ridge and Horace Mesa. More details about the particulars later, but I'll describe the day from a non-academic point of view for now.
The drive wasn't too bad, started at 8:30 AM and got there late morning. We first stopped at a camp ground at Lobo Springs, which is kind of in the center of the two places we were going to visit. It was nice because it was shady and had picnic tables for us to sit and take notes. By this time the GSI had tightened the reigns on what we take notes on. Basics are who, what, where, when, and why, but it seemed like our eagerness to get this information was keeping us from actually listening to Shackley talk. We attributed the GSI's sudden strictness on the fact that field schools she experienced were much more strenuous than the one we were doing. However, we were all so exhausted from being in the heat every day that despite the lack of actual digging, that we felt we were getting worked too hard mentally. It was nice to just sit, listen, and catch up on thoughts during that first stop in the morning.
Now, the day before I'd only picked up obsidian nodules the size of silver dollars, but today was much different. We first went to East Grants Ridge (the side of a mesa east of a town called Grants), where we parked at the site of an old perlite mine. Why mine perlite? Because it's used in many potting soils (the white chunks) and plasters. Pretty cool, but we weren't there to look at perlite. Perlite houses nodules of obsidian until it erodes away, and the obsidian becomes exposed.
We walked over the landscape (Dio mio it was hot) and right to the edge of a huge erosion slope that had formed. The ground was literally littered with obsidian, some it the size of my fist. I actually grabbed one of these since it was a goal of mine to get something that large. It was just big enough to be impressive, but small enough that I could carry it on a plane :)
There were also what are called "obsidian needles", which are nodules that formed in a stretched, instead of spherical shape (at right). As we started hiking up the slope, it was gravelly with obsidian scattered everywhere, but when we reached a certain point (and at this point I was winded) you couldn't avoid stepping on the obsidian that was everywhere. If you want a goal when you come to New Mexico, go to one of these sources and check it out, because it's a beautiful sight in some ways.
(My good friend Fanya, Monica and Wyatt in background)
Some people decided to stop halfway up and debate continuing. The slope was pretty steep and we weren't all good at hiking, so half of us debated while the other half pushed ahead. The professor said it was not required to hike up there, but I was determined to finish the climb. There were a lot of bushes to go around, and most rocks slid when stepping on them, but when we finally got to the top the view was amazing. The cars looked like specks down on the road (below) while we could see everything for miles ahead (right).
At the top there was a huge hunk of perlite jutting out from the mesa (right) with black streaks in it (below, left). These streaks were non other than obsidian nodules embedded in the rock. In a few thousand years when the rock erodes away, those nodules will fall to the floor and begin to erode down the mountain like so many had before them. We took some pictures while there, then we had to get down. The easiest way, though what seemed like the scariest, was to go down a steep slope of sediment. I was scared at first, but the larger steps I took the faster I got down. It took very little work, and was just like walking. Such a strange feeling: walking but falling. My shoes didn't like it so much, though, because they filled with dirt and finally became my not-so-nice exercise shoes. They were over a year old so they were due for the demotion. Fanya is shown below, right sliding down the hill!
(From left: Valerie, myself, Cristina, and Jake)
After that, we went to Horace Mesa. This was not too far away, and instead of going to the side of it, we drove to the top. It was a strange feeling being high up, but on a completely flat surface. The place was covered in a red-brown dirt, so it (like a lot of places we visit) looked like Mars with trees. The way the mesa had formed was that basic lava (basalt) flowed steadily out over a layer of obsidian-rich lava, and now the obsidian has "floated" (as Shackley said) to the surface of it. So although there wasn't a lot of obsidian around, it was present, and we spent quite some time looking for un-worked nodules.
It was very cool wandering around the area and coming across projectile points (arrow heads) just lying on the ground. Being the archaeologists that we are, we picked them up to study them, but we put them right back where they were. If you ever find arrow heads, just leave them where they are, because you never know if someone will want to do an excavation where you're standing.
There were also animal bones everywhere, bleached by the sun. One was a near-complete deer skeleton that had its vertebrae still sticking together. It was VERY cool. We were there to look for obsidian, but finding bones is really entertaining for most of us, especially one of the women who wants to be a zooarchaeologist.
Below are all the rocks I found this day!
It was a long day of looking at things, and it was Friday so our journals were due the next day. When we got back, it's all we worked on, and we had an end of the week party in the room next door. It was really fun! We had margaritas in the southwest/Mexican theme that we were experiencing. Go Bears to the end of the first week, and the first post I've finished in a while!!! I didn't have any pictures for Horace Mesa because I left the camera in the car, but I'll leave you with this beautiful lizard that we saw from the car!