Radiolarian Chert Quartz
Radiolarian Chert Quartz - Hearst San Simeon State Beach Ca - Chert is primarily a hard sedimentary rock composed of billions of microscopic, silica rich skeletons (Radiolaria). The skeletons are not made of quartz, but after burial, compaction, and chemical changes, the silica rich sediments transform to quartz. The word “knocker” is a regional geologic term used to describe lone outcrops of bedrock that rise above the surrounding landscape in areas typically underlain by the Franciscan Complex.
Radiolarian Chert Quartz
Radiolarian Chert Quartz - Hearst San Simeon State Beach Ca - Chert is primarily a hard sedimentary rock composed of billions of microscopic, silica rich skeletons (Radiolaria). The skeletons are not made of quartz, but after burial, compaction, and chemical changes, the silica rich sediments transform to quartz. The word “knocker” is a regional geologic term used to describe lone outcrops of bedrock that rise above the surrounding landscape in areas typically underlain by the Franciscan Complex.