Nice Info John,

Great site and Pictures, really interesting. I have seen so many
different structures in the Hawkesbury Sandstone, its such an
amazing formation...so much cross bedding, iron stains, concretions,
spherical iron stained bedding plains and so much more that i
couldnt even explain to you!

Thanks for the info and a great read!

When are you going to the fish quarry? i would love to get in there
and have a look aswell, is it a part of the fossil Club? when are
you planning on going?

Regards Chris

--- In fossilclubgroup@..., John <john.mail@...>
wrote:
>
>
>
> Hello,
>
>
> An excurion took place recently to see the fossil trees
photographed in an
> article by creationist geologist Tasman Walker.
>
> The site is Box Hill, Bouddi Peninsula.
>
> The existence of the Box Head "fossil trees" structures was first
published
> on in 2003, including a photo of them taken by Andrew Taylor.
>
> The cyclindrical objects photographed certainly look like
> sideritised/haematitic trunks.
>
> However, many other vertical ferruginous cylindrical structures
were found
> to be present in the sandstone there and from the range of
features it is
> seen that they are definitely vertical concretionary structures,
not trees.
>
> Photos may be see under "GOSFORD" at
> http://www.lachlanhunter.deadsetfreestuff.com/JB/geo-sitesG-I.htm
>
> Still to be visited is Coal and Candle Creek on the other side of
the
> Hawkesbury where a fossil stump was discovered by a member of the
Fossil
> Club many years ago.
>
> The Coal and Candle Creek position (near the tidewater limit) is
likely at
> the same or very similar stratigraphic level near the top of the
Narrabeen
> Group and first guess would now be that it is another
occurrence/exposure
> of these vertical ferruginous cylinders.
>
> I do not know of any other occurrences of similar things in other
parts of
> the world .. does anybody else?
>
> Also planned for 2008 is a revisiting of the famous fossil fish
beds at
> Gosford. I've never been to that quarry myself yet. It is known
as Blunts
> Quarry.
>
>
> Regards,
>
>
>
>
> John Byrnes
>
> (LachlanHunter Associates, Sydney)
>