It accounts for 15% of California’s wine grape harvest, but it represents 47% of Napa Valley’s overall wine grape harvest (tons harvested/not bearing acreage; Cab Sauv = 50% of Napa’s bearing acreage) It has a of 67% of the harvest, according to the most recent crush report, which showed the value of a ton of Napa Valley Cabernet Sauvignon grapes was 6.6 times the statewide average. Napa’s quality is reflected in its grape prices. Slide 13: Soils Image: Napa Valley Vineyard Picture General Talking Points None; use slide to transition to next section and solicit questions from audience Slide 14: Plates Colliding Image: Illustration showing the Farallon Plate and North American Plate colliding General Talking Points Starting around 150 million ago, part of the Pacific Ocean floor called the Farallon Plate collided with the North American Plate, and moved underneath it. This subduction of one plate under another caused the formation of two of the three major bedrock types found in Napa Valley. Slide 15: Sierra Nevada and Great Valley Sequence Image: Illustration showing the Great Valley Sequence and formation of the Sierra Nevada Mountains General Talking Points #1, the Great Valley Sequence: About 150-125 million years ago, as the Pacific Ocean floor moved underneath the North American Plate, intense pressure and temperature created a magma that rose to produce a string of volcanoes up the western coast of North America that would form the ancestral Sierra Nevada Mountains. Over the years, these volcanoes eroded, sending massive amounts of volcanic sediment running off to the west and settling at the base of the mountains. As the material settled, it formed sedimentary rocks mostly – sandstone and shale creating the land that is now California’s Central – Valley and extending all the way to the Pacific Ocean. Geologists call this bedrock material the Great Valley Sequence. Slide 16: Franciscan Formation Image: Illustration showing the Franciscan Formation General Talking Points
It accounts for 15% of California’s wine grape harvest, but it represents 47% of Napa Valley’s overall wine grape harvest (tons harvested/not bearing acreage; Cab Sauv = 50% of Napa’s bearing acreage) It has a of 67% of the harvest, according to the most recent crush report, which showed the value of a ton of Napa Valley Cabernet Sauvignon grapes was 6.6 times the statewide average. Napa’s quality is reflected in its grape prices. Slide 13: Soils Image: Napa Valley Vineyard Picture General Talking Points None; use slide to transition to next section and solicit questions from audience Slide 14: Plates Colliding Image: Illustration showing the Farallon Plate and North American Plate colliding General Talking Points Starting around 150 million ago, part of the Pacific Ocean floor called the Farallon Plate collided with the North American Plate, and moved underneath it. This subduction of one plate under another caused the formation of two of the three major bedrock types found in Napa Valley. Slide 15: Sierra Nevada and Great Valley Sequence Image: Illustration showing the Great Valley Sequence and formation of the Sierra Nevada Mountains General Talking Points #1, the Great Valley Sequence: About 150-125 million years ago, as the Pacific Ocean floor moved underneath the North American Plate, intense pressure and temperature created a magma that rose to produce a string of volcanoes up the western coast of North America that would form the ancestral Sierra Nevada Mountains. Over the years, these volcanoes eroded, sending massive amounts of volcanic sediment running off to the west and settling at the base of the mountains. As the material settled, it formed sedimentary rocks – mostly sandstone and shale – creating the land that is now California’s Central Valley and extending all the way to the Pacific Ocean. Geologists call this bedrock material the Great Valley Sequence. Slide 16: Franciscan Formation Image: Illustration showing the Franciscan Formation General Talking Points
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