Lab field assignment (Olga Zepeda)

1. Lam Watah Historic Trail (Rabe Meadows)
Olga Zepeda
Geology 103
Summer 2018

2. I chose to do my assignment in a local location here in Stateline, Nevada. The Trail
Lam Watah Historic Trail called (Rabe Meadows). Almost at the end of Kahle Drive
on the right hand side the trail has a bridge and under the bridge there is two small
streams. It's noticeable that this trail has many visitors and is well kept because most
of the trail is paved and looks like the bridge was built to be able to pass the streams
Lam Watah Historic Trail (Rabe Meadows). (2018, July 11). Retrieved from https://tahoetrailguide.com/lam-watah-historic-trail-rabe-meadows/
Trail Map of Rabe Meadows

3. Lam Watah Historic Trail (Rabe Meadows) Facts
Trail Data (approximations):
 Location: South Tahoe – Stateline
 Category of Hike: Family Fun Hike, Day Hike
 Total Mileage: 2-3 miles (depending on hiking out-and-back
or a loop)
 Total Elevation Gain: n/a
 Highest Point: 6,275 feet
 Trail Condition: Packed sand and paved trail
Lam Watah Historic Trail (Rabe Meadows). (2018, July 11). Retrieved from https://tahoetrailguide.com/lam-watah-historic-trail-rabe-meadows/

4. Living things
Ants on a logAnts are eusocial insects of the family Formicidae and, along with
the related wasps and bees, belong to the orderHymenoptera.
Ants evolved from wasp-like ancestors in the Cretaceous period,
about 140 million years ago, and diversifiedafter the rise
of flowering plants.
During the Cretaceous period, a few species of primitive
ants ranged widely on the Laurasian supercontinent. They
were scarce in comparison to the populations of other
insects, representing only about 1% of the entire insect
population. Ants became dominant after adaptive
radiation at the beginning of the Paleogene period. By
the Oligocene and Miocene, ants had come to represent
20–40% of all insects found in major fossil deposits. Of
the species that lived in the Eocene epoch, around one in
10 genera survive to the present.
https://en.wikipedia.org/wiki/Ant

5. CaninesIt was originally believed the first domesticated wolves appeared
around 15,000 years ago in the Middle East. New evidence,
however, suggests it was much earlier than that. Swedish geneticist
Pontus Skoglund published a study last year in the journal Current
Biology, describing his findings of a 35,000-year-old Siberian wolf
bone. He concluded that canine domestication may have first
occurred 27,000 to 40,000 years ago.
News, A. (2016, August 26). The History of Dogs as Pets. Retrieved from
https://abcnews.go.com/Lifestyle/history-dogs-pets/story?id=41671149

6. Buzzing around
Bees are flying insects closely related to wasps and ants, known for their role in pollination and, in the
case of the best-known bee species, the western honey bee, for producing honey and
beeswax. Wikipedia
Scientific name: Anthophila
Higher classification: Apoidea
Length: Early bumblebee: 1 – 1.4 cm
Lifespan: Western honey bee: 122 – 152 days, Early bumblebee: 28 days
Bee. (2018, August 9). Retrieved from https://en.wikipedia.org/wiki/Bee

7. Flowers
 The dandelion is the only flower that represents the 3 celestial bodies
of the sun, moon and stars. The yellow flower resembles the sun, the
puff ball resembles the moon and the dispersing seeds resemble the
stars.
 The dandelion flower opens to greet the morning and closes in the
evening to go to sleep.
 Every part of the dandelion is useful: root, leaves, flower. It can be
used for food, medicine and dye for coloring.
 Up until the 1800s people would pull grass out of their lawns to make
room for dandelions and other useful “weeds” like chickweed, malva,
and chamomile.
 The name dandelion is taken from the French word “dent de lion”
meaning lion’s tooth, referring to the coarsely-toothed leaves.
 Dandelions have one of the longest flowering seasons of any plant.
 Seeds are often carried as many as 5 miles from their origin!
My Dandelion is a Flower. (n.d.). Interesting and Fun Facts About the Dandelion Flower. Retrieved from http://mydandelionisaflower.org/did-you-
know/

8. Trees
 Jeffrey pine is a large coniferous evergreen tree
 Reaching 25 to 40 m (82 to 131 ft) tall, rarely up to 53 m
(174 ft) tall
 Though smaller when growing at or near tree line.
 The leaves are needle-like, in bundles of three,
stout, glaucous gray-green, 12 to 23 cm (4.7 to 9.1 in)
long.
 The cones are 12 to 24 cm (4.7 to 9.4 in) long, dark
purple when immature, ripening pale brown, with thinly
woody scales bearing a short, sharp inward-pointing
barb.
 The seeds are 10 to 12 mm (0.39 to 0.47 in) long, with a
large (15 to 25 mm (0.59 to 0.98 in)) wing.
Jeffrey pine. (2018, February 16). Retrieved from https://en.wikipedia.org/wiki/Jeffrey_pine

9. All about Rocks
Granite: The specimen above is a typical granite.
It is about two inches across. The grain size is
coarse enough to allow recognition of the major
minerals. The pink grains are orthoclase feldspar,
and the clear to smoky grains are quartz or
muscovite. The black grains can be biotite or
hornblende. Numerous other minerals can be
present in granite.
Granite: Igneous Rock - Pictures, Definition & More. (n.d.). Retrieved from https://geology.com/rocks/granite.shtml

10. Granodiorite Rocks & Pebbles
Granodiorite is a
phaneritic-textured
intrusive igneous rock
similar to granite, but
containing more
plagioclase feldspar than
orthoclase feldspar.
Granodiorite. (2018, April 17). Retrieved from
https://en.wikipedia.org/wiki/Granodiorite
A pebble is a clast of rock with a
particle size of 2 to 64 millimeters
based on the Krumbein phi scale of
sedimentology. ... A rock made
predominantly of pebbles is termed
a conglomerate. Pebble tools are
among the earliest known man-
made artifacts, dating from the
Palaeolithic period of human
history
Pebble. (2018, August 1). Retrieved from
https://en.wikipedia.org/wiki/Pebble

11. Law of Super Position
Geology. a basic law of geochronology, stating that in any undisturbed
sequence of rocks deposited in layers, the youngest layer is on top and
the oldest on bottom, each layer being younger than the one beneath it
and older than the one above it.
the definition of law of superposition. (n.d.). Retrieved from https://www.dictionary.com/browse/law-of-superposition
Law of Superposition – Evolution (Period 5). (2015, May 18). Retrieved from
http://blogs.universityprep.org/evolutionp5/2015/05/18/law-of-superposition/

12. Angular unconformity
An angular unconformity is an
unconformity where horizontally
parallel strata of sedimentary rock are
deposited on tilted and eroded layers,
producing an angular discordance with the
overlying horizontal layers. The whole
sequence may later be deformed and tilted
by further orogenic activity. A typical case
history is presented by the paleotectonic
evolution of the Briançonnais realm
(Swiss and French Prealps) during the
Jurassic.
Unconformity. (2018, August 5). Retrieved from https://en.wikipedia.org/wiki/Unconformity

13. Extras

14. Signs along the way

15. References
Ant. (2018, August 6). Retrieved from https://en.wikipedia.org/wiki/Ant
Bee. (2018, August 9). Retrieved from https://en.wikipedia.org/wiki/Bee
Granite: Igneous Rock - Pictures, Definition & More. (n.d.). Retrieved from https://geology.com/rocks/granite.shtml
Granodiorite. (2018, April 17). Retrieved from https://en.wikipedia.org/wiki/Granodiorite
Jeffrey pine. (2018, February 16). Retrieved from https://en.wikipedia.org/wiki/Jeffrey_pine
Lam Watah Historic Trail (Rabe Meadows). (2018, July 11). Retrieved from https://tahoetrailguide.com/lam-watah-
historic-trail-rabe-meadows/
Law of Superposition – Evolution (Period 5). (2015, May 18). Retrieved from
http://blogs.universityprep.org/evolutionp5/2015/05/18/law-of-superposition/
My Dandelion is a Flower. (n.d.). Interesting and Fun Facts About the Dandelion Flower. Retrieved from
http://mydandelionisaflower.org/did-you-know/
News, A. (2016, August 26). The History of Dogs as Pets. Retrieved from https://abcnews.go.com/Lifestyle/history-
dogs-pets/story?id=41671149
Pebble. (2018, August 1). Retrieved from https://en.wikipedia.org/wiki/Pebble
the definition of law of superposition. (n.d.). Retrieved from https://www.dictionary.com/browse/law-of-superposition
Unconformity. (2018, August 5). Retrieved from https://en.wikipedia.org/wiki/Unconformity