Item Number
1006
Type
image
Description
Spruce
Size
9x6
Age
Cenozoic, Miocene
SciId
Genus: Picea/Family: Pinaceae (Pine)
Status
in inventory
Display/Storage
Display
Building
Zuhl Museum
Original Site
Kittitas Co., near Vantage, Washington
Date Acquired
1992
Source
Rose
Gallery/Room\Floor
Petrified Wood Gallery
Notes
14 Ma, Yakima Fm. Notes from Dr. Scott Singleton, Houston Museum, 2005: Spruce Genus: Picea Family: Pinaceae (Pine) Kittitas Co., near Vantage, Washington Formation: Yakima Basalt Fm. Age: middle Miocene, ~14 million years Distinguishing Characteristics: Pronounced growth rings resulting from seasonal temperature variations in a temperate environment. Resin canals are present in the latewood or on the growth ring boundary. These resin canals are sometimes clustered into chains of two to several. Douglas Fir and Spruce are often confused because in cross-section they look very similar. The primary difference is that the change in cell size from earlywood to latewood is gradual in Spruce and more pronounced in Douglas Fir. Environment of Deposition: Original deposition was either as rafted material in rivers or as in-situ material in swamps. These environments were repeatedly covered by basalt flows or ash falls from Cascade volcanoes. When entombed by molten basalt, these trees burned unless they were covered by water in a stream, lake, or swamp. Ash falls offered an opportunity for these forests to be preserved in their upright, in-situ positions by large quantities of relatively cool ash. Preserved trees in the Vantage Fossil Forests are found both as rooted stumps standing upright and as unrooted, stripped logs lying horizontal. Because of this, Vantage is known to contain a wide diversity of tree genera. It has been estimated that over 50 genera are represented, although about 15 genera account for about 90% of the specimens.
Preview
Description
14 Ma, Yakima Fm. Notes from Dr. Scott Singleton, Houston Museum, 2005: Spruce Genus: Picea Family: Pinaceae (Pine) Kittitas Co., near Vantage, Washington Formation: Yakima Basalt Fm. Age: middle Miocene, ~14 million years Distinguishing Characteristics: Pronounced growth rings resulting from seasonal temperature variations in a temperate environment. Resin canals are present in the latewood or on the growth ring boundary. These resin canals are sometimes clustered into chains of two to several. Douglas Fir and Spruce are often confused because in cross-section they look very similar. The primary difference is that the change in cell size from earlywood to latewood is gradual in Spruce and more pronounced in Douglas Fir. Environment of Deposition: Original deposition was either as rafted material in rivers or as in-situ material in swamps. These environments were repeatedly covered by basalt flows or ash falls from Cascade volcanoes. When entombed by molten basalt, these trees burned unless they were covered by water in a stream, lake, or swamp. Ash falls offered an opportunity for these forests to be preserved in their upright, in-situ positions by large quantities of relatively cool ash. Preserved trees in the Vantage Fossil Forests are found both as rooted stumps standing upright and as unrooted, stripped logs lying horizontal. Because of this, Vantage is known to contain a wide diversity of tree genera. It has been estimated that over 50 genera are represented, although about 15 genera account for about 90% of the specimens. 11x10
Keywords
Spruce 14 Ma, Yakima Fm. Notes from Dr. Scott Singleton, Houston Museum, 2005: Spruce Genus: Picea Family: Pinaceae (Pine) Kittitas Co., near Vantage, Washington Formation: Yakima Basalt Fm. Age: middle Miocene, ~14 million years Distinguishing Characteristics: Pronounced growth rings resulting from seasonal temperature variations in a temperate environment. Resin canals are present in the latewood or on the growth ring boundary. These resin canals are sometimes clustered into chains of two to several. Douglas Fir and Spruce are often confused because in cross-section they look very similar. The primary difference is that the change in cell size from earlywood to latewood is gradual in Spruce and more pronounced in Douglas Fir. Environment of Deposition: Original deposition was either as rafted material in rivers or as in-situ material in swamps. These environments were repeatedly covered by basalt flows or ash falls from Cascade volcanoes. When entombed by molten basalt, these trees burned unless they were covered by water in a stream, lake, or swamp. Ash falls offered an opportunity for these forests to be preserved in their upright, in-situ positions by large quantities of relatively cool ash. Preserved trees in the Vantage Fossil Forests are found both as rooted stumps standing upright and as unrooted, stripped logs lying horizontal. Because of this, Vantage is known to contain a wide diversity of tree genera. It has been estimated that over 50 genera are represented, although about 15 genera account for about 90% of the specimens. 1992 Cenozoic, Miocene Small Slab
Keywords
Spruce 14 Ma, Yakima Fm. Notes from Dr. Scott Singleton, Houston Museum, 2005: Spruce Genus: Picea Family: Pinaceae (Pine) Kittitas Co., near Vantage, Washington Formation: Yakima Basalt Fm. Age: middle Miocene, ~14 million years Distinguishing Characteristics: Pronounced growth rings resulting from seasonal temperature variations in a temperate environment. Resin canals are present in the latewood or on the growth ring boundary. These resin canals are sometimes clustered into chains of two to several. Douglas Fir and Spruce are often confused because in cross-section they look very similar. The primary difference is that the change in cell size from earlywood to latewood is gradual in Spruce and more pronounced in Douglas Fir. Environment of Deposition: Original deposition was either as rafted material in rivers or as in-situ material in swamps. These environments were repeatedly covered by basalt flows or ash falls from Cascade volcanoes. When entombed by molten basalt, these trees burned unless they were covered by water in a stream, lake, or swamp. Ash falls offered an opportunity for these forests to be preserved in their upright, in-situ positions by large quantities of relatively cool ash. Preserved trees in the Vantage Fossil Forests are found both as rooted stumps standing upright and as unrooted, stripped logs lying horizontal. Because of this, Vantage is known to contain a wide diversity of tree genera. It has been estimated that over 50 genera are represented, although about 15 genera account for about 90% of the specimens. 1992 Cenozoic, Miocene Small Slab