Sentences with phrase «particular rock sample»
But only recently did anyone discover that these particular rock samples also contained the crinoid holdfasts.
https://www.sciencedaily.com/ Not exact matches
In order for the age of any particular rock, fossil or other artifact to be aged, generally two or more samples are dated independently by two or more laboratories in order to ensure an accurate result.
As part of our study, the class visited a local quarry, along with a teacher from our district's Outdoor Ed department, so each child could gather samples of 12 particular kinds of local rocks and label them.