title: Modern Graywacke-Type Sands.
abstract: A preliminary study of more than 100 deep-sea cores from abyssal plains has revealed two examples of recent muddy sands of the graywacke type which, together with the microcrystalline matrix, form a bimodal-size distribution sands have a well-sorted framework of quartz, feldspar, and rock fragments which, together with the microcrystalline matrix, form a bimodal-size distribution that is also typical of ancient graywackes. The matrix is considered to be primary.
authors.forename: C D
authors.initials: CD
authors.lastname: Hollister
authors.forename: B C
authors.initials: BC
authors.lastname: Heezen