close up of native american broken hand axe ax jasper chert paiute indian stone tool in dirt from oregon great basin desert - 黑曜石 個影片檔及 b 捲影像00:15古物
close up of native american red arrowheads obsidian jasper chert paiute indian stone tool in dirt from oregon great basin desert - 黑曜石 個影片檔及 b 捲影像00:24
broken obsidian spear spearpoint native american artifacts paiute indian stone tool on white from oregon great basin desert - 黑曜石 個影片檔及 b 捲影像00:21古物
close up of native american obsidian arrowhead paiute indian stone tool in dirt from oregon great basin desert - 黑曜石 個影片檔及 b 捲影像00:26古物, 美國
close up group native american artifacts hand axe ax red obsidian arrowhead jasper chert paiute indian stone tool in dirt from oregon great basin desert on white - 黑曜石 個影片檔及 b 捲影像00:23箭頭, 古物
close up of native american red arrowhead jasper chert paiute indian stone tool in dirt from oregon great basin desert - 黑曜石 個影片檔及 b 捲影像00:24古物
broken arrowhead obsidian flakes and glass ancient and modern desert roadside trash oregon 3 - 黑曜石 個影片檔及 b 捲影像00:11
tourists close to the top of the pyramid to the sun looking at the pyramid of the moon at teothiuacan mexico, people walking around the prehispanic... - 黑曜石 個影片檔及 b 捲影像01:43
female hand holding sardinian wildflowers against vineyards in luogosanto, sardinia - 黑曜石 個影片檔及 b 捲影像00:12
woman’s hand holding colorful triple scoop ice cream cone against flowering green bush in sardinia - 黑曜石 個影片檔及 b 捲影像00:08
lava fountains reached heights up to 700 feet at hawaii's kilauea volcano on thursday, march 20, amid the volcano's latest eruption episode. the... - 黑曜石 個影片檔及 b 捲影像02:29
crowds flocked to view hawaii's kilauea volcano as it entered "episode 13" of an ongoing eruption at the halemaumau crater on tuesday, march 11.... - 黑曜石 個影片檔及 b 捲影像11:48
lonely green tree is growing in the midst of dead rocks of obsidian a drone shot is revealing a mountain in the background - 黑曜石 個影片檔及 b 捲影像00:15
1970s: various stone tools, dates of use appear. view of various tools. scientist examining stone tool - 黑曜石 個影片檔及 b 捲影像00:35
controversy over the moon - part 28 of 28. the film presents the "controversy" concerning the geological makeup of the moon...specifically the origin of large lunar craters. two eminent scientists interpret available data and discuss reasons for their div - 黑曜石 個影片檔及 b 捲影像00:20
controversy over the moon - part 27 of 28. the film presents the "controversy" concerning the geological makeup of the moon...specifically the origin of large lunar craters. two eminent scientists interpret available data and discuss reasons for their div - 黑曜石 個影片檔及 b 捲影像00:24
controversy over the moon - part 26 of 28. the film presents the "controversy" concerning the geological makeup of the moon...specifically the origin of large lunar craters. two eminent scientists interpret available data and discuss reasons for their div - 黑曜石 個影片檔及 b 捲影像00:34印洗照片
rocks that originate underground - part 25 of 38. since igneous and metamorphic rocks are not produced by surface processes, the film suggests they must be formed within the earth's crust. conditions are reconstructed by use of indirect evidence and the f - 黑曜石 個影片檔及 b 捲影像00:30
rocks that originate underground - part 24 of 38. since igneous and metamorphic rocks are not produced by surface processes, the film suggests they must be formed within the earth's crust. conditions are reconstructed by use of indirect evidence and the f - 黑曜石 個影片檔及 b 捲影像00:33
archeologists in central türkiye unearthed traces of permanent settlement dating back at least 9,300 years, the head of the dig site told anadolu... - 黑曜石 個影片檔及 b 捲影像05:26亞洲, 古物
most obsidian knives are hand made by the people who find the volcanic glass themselves - 黑曜石 個影片檔及 b 捲影像00:14
most obsidian knives are hand made by the people who find the volcanic glass themselves - 黑曜石 個影片檔及 b 捲影像00:16