Conifers
Dogwood
Magnolia
Chestnut
Cypress
100
Volcanoes active in the Yellowstone area 55 to 48 million years ago
What is the Absaroka Volcanic Supergroup
100
Location where flowering trees could be found such as dogwood, magnolia and laurel
What is the lower flank of the volcanoes and valleys in between
100
Marine sediment on the world's continental shelf and onshore regions in with permafrost
What is the modern location for gas clathrates
100
The petrified trees in Tom Miner Basin are composed of this type of mineral
What is quartz
100
The modern eruption that gave evidence that a debris flow can transport stumps with their root wad and then deposit it pointing upward
What is Mt. St. Helens
200
This caused a warmer climate in Yellowstone
What is elevated global temperature
200
The climate favored by ash, sycamore and gum trees
What is a warm moist climate
200
Burning peat and coal
What is an alternative hypothesis for a cause of global warming during the Eocene
200
This provided the template to organize the crystals that later formed into petrified trees
What is the woody tissue
200
The location where trees could be found on the large volcanoes of the Absaroka Volcanic Supergroup
What is a tree covered alluvial apron
300
The average weather pattern in an area
What is climate
300
The organisms used to estimate ocean temperatures
What are foraminfera
300
The type of tree tissue formed during seasons favorable for tree growth
What is earlywood
300
The water present during and after the landslides in Tom Miner basin contained high concentrations of this element
What is silica or silica rich water
300
The clue from the petrified trees that indicated seasons
What is the presence of earlywood and latewood
400
The geological time period when the Absaroka Volcanic Supergroup was active
What is the Eocene
400
One of the major gases that caused global warming during the Eocene
What is carbon dioxide
400
The type of tree tissue produced when the season is dry and not favorable for growth
What is latewood
400
The source of the silica that led to the formation of the petrified trees
What is the volcanic ash
400
The geological time when modern-dayYellowstone was located near the equator
What is Paleozoic time
500
There were no polar ice caps and rainy tropical environments extended to Portland, Oregon
What is the Eocene thermal maximum
500
Water bases crystaline solid that contains molecules of natural gas
What is a gas clathrate
500
The mineral that quartz is made from
What is silca
500
A type of fossil in which the impression of a plant or animal is preserved in rock
What is a mold
500
Characteristics of a debris flow deposit
What is angular clasts and jumbled organization
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