IPB

( Log In ) Log In is for TREC Teachers & Researchers only



4 Pages V < 1 2 3 4 >
XXXXX
> Arctic Dinosaur Ecosystem: North Slope, Alaska

Rocks for Wyatt

tn_gallery_29_18_8438.jpg

Uploaded by: Jason_Petula

On: 1156064384

File Size: 39913

Comments: 0 / Views: 949

Description: A great number of bad weather days have restricted us to camp because it is too dangerous to clamber up the bluff to the quarry. With little to do at camp, I often explore the gravel lined beaches of the Colville River searching for interesting rocks for my two-year old son Wyatt. These are examples of the many colors of rocks found along the river.

Bone Quarry Progress

tn_gallery_29_18_3578.jpg

Uploaded by: Jason_Petula

On: 1155105455

File Size: 62440

Comments: 0 / Views: 950

Description: This is photo of the bone quarry from the ridge we use to climb to the top of the bluff. When we first arrived, most of the white jacket was buried beneath sediment. We have done a lot of excavating, but much more is necessary to facilitate the removal of the jacket from the bluff.

Bone with Tooth Mark

tn_gallery_29_18_4450.jpg

Uploaded by: Jason_Petula

On: 1155088525

File Size: 47505

Comments: 0 / Views: 908

Description: Tony discovered something today that everyone found interesting. He uncovered a bone with a bite mark on it. This is an important find because it offers evidence that there were carnivores in the ecosystem.

Jason at Quarry

tn_gallery_29_18_43982.jpg

Uploaded by: Jason_Petula

On: 1155087998

File Size: 60443

Comments: 0 / Views: 949

Description: The quarry not only contains dinosaur fossils, but also clues about the dinosaur's environment. The rocks that encase the dinosaur bones are all fine-grained - suggesting a low energy environment.

Occipital Condyle

tn_gallery_29_18_14927.jpg

Uploaded by: Jason_Petula

On: 1155021128

File Size: 68150

Comments: 0 / Views: 987

Description: This is a photo of a bone found today called the occipital condyle. It is a very important find because it is an easy way to not only identify the species as a pachyrhinosaur, but also that it is a skull. This particular bone is located at the base of the skull and attaches to the vertebral column.

Tyrannosaurus Tooth

tn_gallery_29_18_5774.jpg

Uploaded by: Jason_Petula

On: 1155020327

File Size: 26941

Comments: 0 / Views: 969

Description: Thomas found a Tyrannosaurus tooth near the spot I was working today. This is exciting because when a tooth is found there may be a head!

Bath Time

tn_gallery_29_18_19762.jpg

Uploaded by: Jason_Petula

On: 1154992435

File Size: 26432

Comments: 0 / Views: 913

Description: Excavating in the quarry all day produces a lot of sweat and blisters. There are two options for dealing with a dirty person: (1) Wait a month until returning to town where there is running water, or (2) Dunk your head into a frigid river and scrub up. The water is vividly cool, but also very refreshing!

Dave's Frustration...

tn_gallery_29_18_33892.jpg

Uploaded by: Jason_Petula

On: 1154991712

File Size: 42121

Comments: 0 / Views: 953

Description: Dave has been resolving problem after problem with the boat motors. He is understandably frustrated. Nonetheless, he keeps his cool and always comes up with a solution. For instance, he managed to repair the boat from yesterday's accident.

Hauling Jackets up the...

tn_gallery_29_18_865.jpg

Uploaded by: Jason_Petula

On: 1154990855

File Size: 63968

Comments: 0 / Views: 826

Description: Once a portion of the slab has a jacket around it, the next step is to haul the jacket to the top of the bluff. The bluff's top is approximately 50 feet above the quarry. This jacket weighs about 250 pounds and took five men to haul to the top.

Accident on the River

tn_gallery_29_18_39609.jpg

Uploaded by: Jason_Petula

On: 1154990232

File Size: 58893

Comments: 0 / Views: 946

Description: Landing inflatable boats on gravel bars is relatively straight forward because the rocks have been weathered round. However, the landslides from the bluffs introduce new rock to the river that is sharp and angular. One of the boats accidently hit one such rock hidden beneath the surface. The impact was great enough to punction the material and damage the boat. Dave towed the boat back to camp to begin repairs.

Jason Uncovering a Din...

tn_gallery_29_18_11195.jpg

Uploaded by: Jason_Petula

On: 1154989572

File Size: 68403

Comments: 0 / Views: 920

Description: Layers of rock and sediment are carefully removed from the quarry. When a suspect bone is found, the matrix removal process slows down. Often, it is necessary to use brushes to slowly reveal the bone. In this case, a portion of the skull is revealed.

Kent Holding Bone Stil...

tn_gallery_29_18_23551.jpg

Uploaded by: Jason_Petula

On: 1154988775

File Size: 47292

Comments: 0 / Views: 934

Description: Kent is holding a newly uncovered bone still in the matrix. The matrix is the rock surrounding the bone and is usually removed by a preparator. Removing an entire dinosaurs from the matrix can take months, if not years of careful labor.

Get Ready to Leave Umiat

tn_gallery_29_18_37587.jpg

Uploaded by: Jason_Petula

On: 1154761476

File Size: 57849

Comments: 0 / Views: 958

Description: The expedition is almost underway!

Loading Boats at Umiat

tn_gallery_29_18_11701.jpg

Uploaded by: Jason_Petula

On: 1154760609

File Size: 45572

Comments: 0 / Views: 858

Description: The boats were too heavy to man haul the mile stretch from Umiat to the river. We decided to use an unusual looking machine pulling a water tank for the camp. The machine is equipment with four-foot tires that allows it to cross the muddy path to the river. Lifting the boats atop the tank was no easy task.

Landing Boats at Grave...

tn_gallery_29_18_9628.jpg

Uploaded by: Jason_Petula

On: 1154760087

File Size: 45673

Comments: 0 / Views: 1081

Description: The Colville River is a massive river that is choked with fine sediments. The sediments in the river give it a chocolate milk color.

Landing at Umiat

tn_gallery_29_18_18676.jpg

Uploaded by: Jason_Petula

On: 1154759656

File Size: 40870

Comments: 0 / Views: 998

Description: Umiat is a permanent field camp located on the North Slope of Alaska. The story of Umiat's origin varies depending on who you ask. The most common story I heard was that it used to be a military camp used primarily by the Navy as a fueling station for petroleum expeditions further north. Now, it is shared by a variety of groups. The only odd thing about the camp is that a group of workers are inciderating dirt. One graduate students thinks the dirt may be contaminated with fuel from when this was used by the military. Maybe a little investigating on the Internet will reveal the true story.

Kent Using Rock Saw

tn_gallery_29_18_20805.jpg

Uploaded by: Jason_Petula

On: 1154758830

File Size: 42193

Comments: 0 / Views: 994

Description: Kent uses a rock saw to cut the massive jacket into a more reasonable size. Once the jacket is cut, the team will begin under cutting the rock slab to release it from the larger unit. The portion Kent is cutting contains the head of a pachyrhinosaur.

Climbing the Bluffs

tn_gallery_29_18_10189.jpg

Uploaded by: Jason_Petula

On: 1154747282

File Size: 35035

Comments: 0 / Views: 999

Description: Kent and Tony climb up the bluffs to the Kikak-tegoseak quarry. Climbing the bluffs is challenging because the sediment is lose and muddy. One slip and a person could easily tumble up to 300 feet into the Colville River.

Kikak-tegoseak dinosau...

tn_gallery_29_18_39846.jpg

Uploaded by: Jason_Petula

On: 1154746867

File Size: 46542

Comments: 0 / Views: 1002

Description: This is the Kikak-tegoseak dinosaur quarry. Kent (Preparator) and two graduates students from Southern Methodist University Thomas Adams and Chris Strganac jacket a pachyrhinosaur skull and other fossils with burlap and plaster.

Entering the Brooks Range

tn_gallery_29_18_9481.jpg

Uploaded by: Jason_Petula

On: 1154745769

File Size: 35326

Comments: 0 / Views: 890

Description: We flew a Cessna Caravan from Fairbanks to Umiat. The flight was beautiful, especially the portion through the Brooks Range. The pilot flew low allowing us to see the landscape in great detail. I even saw some Mountain Sheep.



4 Pages V < 1 2 3 4 >
XXXXX
> Sorting Options
Showing 20 of 75 sorted by in from

- NSF Acknowledgment & Disclaimer Time is now: 28th March 2024 - 01:12 PM