1 00:00:03,510 --> 00:00:01,990 hi everyone my name is michaela and i'm 2 00:00:04,309 --> 00:00:03,520 a phd student from the university of 3 00:00:05,430 --> 00:00:04,319 auckland 4 00:00:06,710 --> 00:00:05,440 i'm just going to talk to you about some 5 00:00:07,349 --> 00:00:06,720 of the work i've been doing which 6 00:00:09,910 --> 00:00:07,359 includes 7 00:00:10,790 --> 00:00:09,920 3d imaging earth's oldest evidence of 8 00:00:14,150 --> 00:00:10,800 life 9 00:00:16,390 --> 00:00:14,160 formation which is found in north 10 00:00:17,430 --> 00:00:16,400 western australia and is 3.48 billion 11 00:00:19,670 --> 00:00:17,440 years old 12 00:00:20,950 --> 00:00:19,680 it is biosedimentary structures called 13 00:00:22,790 --> 00:00:20,960 stromatolites 14 00:00:24,390 --> 00:00:22,800 and unfortunately a lot of the outcrop 15 00:00:25,830 --> 00:00:24,400 deposits are highly weathered 16 00:00:28,550 --> 00:00:25,840 and this has caused a lot of debate in 17 00:00:30,470 --> 00:00:28,560 the literature over their biogenicity 18 00:00:32,549 --> 00:00:30,480 so we undertook a drilling campaign and 19 00:00:35,030 --> 00:00:32,559 obtained fresh drill core which shows 20 00:00:37,110 --> 00:00:35,040 amazing preservation of these deposits 21 00:00:38,150 --> 00:00:37,120 and we actually image some specific 22 00:00:41,030 --> 00:00:38,160 horizons 23 00:00:42,150 --> 00:00:41,040 using the dingo in amsterdam and so this 24 00:00:43,830 --> 00:00:42,160 3d 25 00:00:45,590 --> 00:00:43,840 scan you can actually see that this 26 00:00:46,790 --> 00:00:45,600 shows that the stromatolite says 3d and 27 00:00:48,709 --> 00:00:46,800 morphology 28 00:00:50,709 --> 00:00:48,719 so this is helping us with proving the 29 00:00:53,029 --> 00:00:50,719 biogenicity of these deposits 30 00:00:53,750 --> 00:00:53,039 and so i'm currently rendering a 3d