1. Oregon wine’s dirty secrets: Complex soil types blanket the Willamette Valley, creating varied mediums in which grapes grow to reflect the state’s rich geologic history

    registerguard.com (Feb 28 2014)

    1. Oregon wine’s dirty secrets: Complex soil types blanket the Willamette Valley, creating varied mediums in which grapes grow to reflect the state’s rich geologic history

      The wonderful complex soil in local vineyards, so nurturing to the notoriously finicky pinot noir grape, begins with geology.

      It all started around 200 million years ago as the Pacific Plate slid under the North American Plate. Resulting sea bed shards from that activity shaped a marine sedimentary landmass. It’s what we know today as Washington, Western Oregon and the Willamette Valley.

      Now, go forward 20 million years to a time when volcanoes shook things up and flowing lava formed layers of basalt.

      Then jump ahead again, to 16,000 years ago, when — for a period of 3,000 ...

      (Read Full Article)

      Bookmark or Share this article