Credits for Dig deep

Credits for work used in the Dig deep sequence

The following images have been used in the Dig deep sequence:

ImageAttribution
PebblesStock photo ID: 924188934
Asbestos with muscoviteAram Dulyan, in the Public Domain, via Wikimedia Commons
Asbestos fibresAram Dulyan, in the Public Domain, via Wikimedia Commons
CrocoiteAssianir, CC BY-SA 3.0, via Wikimedia Commons
CrocoiteDietmar Down Under, CC BY 2.0, via Flickr
Slightly oxidized leadBest Sci-Fatcs, CC BY-SA 4.0, via Wikimedia Commons
Galena-QuartzRod Lavinsky, CC BY-SA 3.0, via Wikimedia Commons
Hg MercuryHigany, in the Public Domain, via Wikimedia Commons
Mercury in glass medical thermometerJacek Halicki, CC BY-SA 4.0, via Wikimedia Commons
Banded iron formation from the Precambrian of Australia. (11.5 cm across at its widest)James, St. John, CC BY 2.0, via Wikimedia Commons
Compost, millésime 2007wisemandarine, CC BY-SA 2.0, via Flickr
Ruler with millimeter and centimeter marksDnu72, CC BY-SA 4.0, via Wikimedia Commons
Quartz Didier Descouens, CC BY-SA, via Wikimedia Commons 
GalenaIvar Leidus, CC BY-SA, via Wikimedia Commons 
Potato chips Evan-Amos, Public Domain, via Wikimedia Commons 
Banana peelPriwo, Public Domain, via Wikimedia Commons
MarshmallowsFather.Jack, CC BY 2.0, via Wikimedia Commons