post-symposium excursion: southern carnarvon basin€¦ · post-symposium excursion: southern...
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West Australian Basins Symposium 2013 Hosted by The Western Australian Branch of the Petroleum Exploration Society of Australia (PESA)
Post-symposium excursion: Southern Carnarvon Basin 22�28 August 2013
Sandstone
Shale
Carbonate
Carbonate�shale,marlEvaporite
Sandstone
Shale
Conglomerate
Diamictite
Dominant lithology
Secondary lithology
Unconformity
Yindagindy Fm.
Williambury Fm.
Moogooree Lst.
Munabia Ss.
WilllaraddieFm.
Dirk
Har
tog
Gro
up
TumblagoodaSs.
Gneudna Fm.
LyonsGroup
KennedyGp
ByroGroup
Callytharra Formation
Guad.
252
299
Lop.
Cis.
Penn.
Serp
Per
mia
n
Vis.
Tou.
Fam.
Fra.
M
L
Lland.
Wen.Lud.Prid.
Mis
siss
ippi
anU
pper
Car
boni
fero
us359
419
444
Dev
onia
nS
iluria
n
UpperOrdovician
Nannyarra Ss.
SweeneyMia Fm.
Kopke Ss.Faure Fm.
CockburnFm.
Ajana Fm.Yaringa Fm.
Wooramel Gp
Stratigraphy
Birdrong SS.
Win
ning
Gro
up
WindaliaRadiolarite
MuderongShale
66
145
U
L
Cre
tace
ous
Epoch
Per
iod
Age(Ma)
GearleSiltstone
ToolongaCalcilutite
Nanutarra Fm.
Guides: and (GSWA)Arthur Mory Roger Hocking
Geology: The excurs ion w i l l v is i t Lower Carboniferous to Holocene sections, with highlights including Kungurian clastic–carbonate shallow-water cycles, proximal facies of Lower Cretaceous reservoir facies, and the renowned modern stromatolites at Shark Bay.
In this region Lower Carboniferous shallow-water clastic carbonate facies have received relatively little attention in the Southern Carnarvon Basin. Permian strata, by comparison, have been the focus of numerous studies, mostly palaeontological and stratigraphic. The Permian suuession (Asselian to Roadian) is dominantly siliciclastic, but contains the most marine Permian facies of the Australian mainland. In this part of the basin there is no Triassic or Jurassic, so the Lower Cretaceous rests unconformably on older rocks.
Numbers: Minimum 16, maximum 32; to reserve places contact [email protected] or [email protected]. Final confirmation of a place depends on payment in full to the conference manager (ICE).
Cost: In the vicinity of Aus$3200 per participant, covering Geraldton to Exmouth (does not include flights).
Pay by: 11 June 2013
Logistics: This 7-day (6 nights) excursion starts at Geraldton (370 km NNW of Perth) and ends at
Exmouth (1125 km north of Perth). Travel to and from these towns, and any costs incurred in them (apart from
ththe evening of the 28 ), will be at the participants’ own expense. During the excursion travel will cover about 1500 km in total mostly by coach with transfers to more difficult outcrops by 4WD (SUV) troop carriers. Apart from
st ththe 1 and 6 nights in hotels, the rest of the trip will involve camping out in remote locations with no laundry facilities. Camping equipment will be provided as will all meals, apart from snacks at roadhouses.
Fault drag in Winning Group, northern Kennedy Range
Day Travel Geology AgeDistance
(km)
Provisional itinerary
WABS2013 Flyer Carnarvon
50 km
114°
22°
24°
26°
1
Exmouth
Carnarvon
Learmonth
SHARK BAY
INDIAN OCEAN
NO
RTH
WE
STC
OA
STA
L
HIG
HW
AY
Excursion route
HamelinPool
1 Overnight stay
5
4
6
2�3
1
from
Geraldton
2 hrs (1125 km)to PERTH by air
LakeMacleod
ndThu 22 Aug Fly Perth–Geraldton, Geraldton–Carnarvon
Hamelin Pool stromatolites Holocene 515
rdFri 23 Aug Carnarvon–Middalya Byro Group shallow marine facies Early Permian (Kungurian) 240thSat 24 Aug Middalya area Winning and Kennedy Groups shallow marine
facies, fault dragEarly Cretaceous (Barremenian– Albian), Early Permian (Roadian)
85
thSun 25 Aug Middalya – Emu Creek Wooramel Group, Callytharra Formation, Harris Sandstone, Moogooree Limestone; shallow marine and ?glaciofluvial facies
Early Permian (Artinskian) to Early Carboniferous (Tournaisian)
160
thMon 26 Aug Emu Creek – Pyramid Hill
Nanutarra Formation, Barrow Group, equivalent,fluvial – shallow marine on basement
Early Cretaceous (Barremian) 150
thTue 27 Aug Pyramid Hill – Exmouth upper Winning Group and overlying carbonates Early–Late Cretaceous, Cenozoic 270thWed 28 Aug Fly Exmouth – Perth Cape Range Group, neotectonics Cenozoic (Miocene) – Pleistocene 80
Total (road only) 1500
Recommended reading: GSWA Records 2000/10, 2011/14 and GSWA Report 86 (PDFs can be downloaded free of charge from: http://www.dmp.wa.gov.au/7119.aspx).
Route of excursion
Nanutarra Formation disconformably overlying basement,Nanutarra area
Bring along: Boots that provide ankle protection, broad brimmed hat, 30+ sun screen, clothes for 6 moderately warm days, pullover for evenings, towel and toiletries, camera with spare battery and memory cards, day pack, large water bottle, snorkelling gear for Shark Bay (water temperature ~18°C), and a sleeping bag with pillow if you prefer your own.
Notes: The excursion has been designed to allow participants to fly from Perth to Geraldton on the early morning flight (QF1926)
nd on the 22 and return from Exmouth on the afternoon flight th(QF2429) of the 28 . There are ~6 direct flights/day to Geraldton
(Qantas, Skywest and Virgin Australia, taking ~1 hr), but flights from Exmouth are less frequent. It is advisable to book flights as soon as the excursion is confirmed, especially for the return from Exmouth. For suggestions if you wish to stay on in Exmouth visit: http://www.exmouthwa.com.au.
There will only be limited opportunities to replenish personal items, and mobile phone coverage is poor outside major towns north of Geraldton (Telstra’s 850 Mhz NextG network provides the best coverage). Facilities to recharge personal electronic items and for laundry will be limited apart from the first and last evenings. Hammers can be provided for international and interstate participants. Collection of macrofossils is possible at some localities, but they have to be assessed before they can be exported from Australia under the Federal government’s Protection of Movable Cultural Heritage Act 1986 (www.deh.gov.au/heritage/movable).