All language subtitles for 15 video Discussion of Mungo Man dating [360p]

today I'm with Professor John Ollie

um John is running the Optical Dating Laboratory

at Griffith University

and John and I have both worked on the dating

of the famous Mongol fossil and um

today we talk about

what happens if the results don't agree

thanks for honor

it's really good to be here with you

and discussing the Mongol uh

dating burial

so the Mongol site

as you're aware

is the oldest ritual burial site

as yet found on the planet

uh the body was rubbed with open

before being turned of its hands

placed across uh

the the midsection of the body um

clear clearly evidence

that there was burial practices underway at that time

uh most Australians aren't aware of the importance

globally of the

of the Mungo site

so we applied three different methods um

within the same university

but with different abortions of course

um so we did optical dating um we did um

uranium serious dating in difference

but if you look at um

all the results that we have

every single one of them

none of them is 40,000 um

and it's quite

difficult to push everything down to 40,000 it's it's

it's very difficult to explain

we applied uh

luminescence dating

optically stimulated luminescence to the side

we dated two long profiles through the side

and we used three uh

laboratories independently to actually date uh

the settlement samples one UH1 uh

laboratory dated one of the channels that was cut

the other laboratory dated the other chapel was cut

and I did cross date dating um

of selected samples to uh

test the results from each other laboratory

and when we put all those dates together

they were incredibly consistent

more consistent than you'll actually uh

expect and the dates agreed

so we ended up with the same ages of the profile

so I think we applied one technique

but three laboratories applied that technique

and we ended up with a very consistent result

so from that

I'm pretty confident that we did the best

optically stimulated luminescence dating

of the site that we could do

in addition

uh I dated uh

material that was collected from the grave infill by

Jim and I produced the same age for the grave infill

as we got from the stratographic layer

from the three laboratories previously

and so all the obstacle uh

ages were consistent and so you

I can't see anything that we could have done more

to improve what we did

we can't both be right um

because the

the discrepancy between the dates is

is more than 2 3

4 5 Sigma so the

the error range does not

does not allow on overlap

I still I still lean towards the fact that you know

because we dated the entire stratographic profile

we did there was no I

I'm not aware of uh

any errors in the approach that we took

three laboratories to be always eldating

the only weak weakness

I can see in what we did

is the fact that we used one dating technique um

having said all that

I've looked very

very closely at what you did

and the uranium series dating

and I can't see anything wrong with what you did either

so the annoying thing for me

and I'm sure for you

is that it's nice in science

if you understand the reasons why there's a difference

and when you don't understand the reasons

why there is a difference

it leads you

leads you worried that okay

well if I don't understand

why that result is different to mine

have I made a mistake

is there something in my

the way the techniques that I've used

that is actually flawed

but we don't know about it yet

in this particular case

whether we can resolve that

this is more than questionable

because the

as you know

the Mongol remains have been repatriated

and without further analysis to

to cross checks

perhaps we do cross sections

Lithuanian series dating across the bone and

and these sort of things that we developed

in the meantime

uh perhaps we could get some insight on on that

whether it would resolve it

I don't know

but I would love to resolve the problems

but it would be associated with

more analysis on this glitter material

and I think that is not something um

that we should do

because Mongol has been repatriated and

and I agree with the

aboriginal Ada

Mongol man has done its job for signs

it should have peace in the land where it came from

I agree