DOCSLIB.ORG

2013 Flood Calibration

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
2013 Flood Calibration 385,000 390,000 395,000 400,000 405,000 410,000 415,000 420,000 425,000 430,000 435,000 440,000 21 Cedars Road Bridge 22 #* 21 MOORE PARK 23 23 2 2 22 2 7,265,000 3 7,265,000 23 3 3 23 23 3 3 3 Th 23 e 24 3 3 C 3 ed a 3 rs R River Mouth o (! 27 ad 0 km 26 3 25 Cedar Road 4 2 #* 51.7 km 4 BURNETT HEADS 3 3 2 27 26 3 7,260,000 27 B 7,260,000 24 u n d 27 !( a b e B u r n g d - a M FAIRYMEAD SUGAR MILL be ir rg - Po ia #* 6 6 rt R m oad V ale 5 R oa 6 d 6 6 24 6 6 #* Moore Park Road 7 7 7 7,255,000 7 7,255,000 25 d oa R 8 ra 8 a arg - B 26 26 rg 26 abe nd 8 Bu 9 9 9 9 8 10 11 10 9 9 11 9 9 " Isis Highway (!) 12 (! 7,250,000 (! #* 7,250,000 SHARON #* 12 BUNDABERG Elliott Heads Road 15 (! Bundaberg Gauge 18 km 16 oad g R Rin erg 7,245,000 b 7,245,000 da Ben Anderson Barrage B un 25.9 km 17 BINGERA SUGAR MILL #* 18 d d a Roa 20 Gin o n R - Gi B rg s 21 undabe r 22 20 19 a (! d e C e h 22 T Goodwood Road 7,240,000 7,240,000 23 24 29 28 Bingera Weir 27 42.1 km 27 (! 29 29 oad Cedar Road y R err 25 51.7 km ount P in - M Gin G 26 26 #* 30 7,235,000 GIN GIN 8 8 7,235,000 Bundaberg 30 9 8 9 9 Bundaberg - Gin Gin R oad 31 9 PINE CREEK 8 #* 34 9 11 11 10 9 33 7,230,000 DRINAN 7,230,000 35 11 10 #* 9 37 10 9 9 36 9 11 10 9 9 10 9 10 9 9 37 36 10 36 Ned Churchward Weir 74.6 km 10 37 38 11 !( ") 37 !( (! !( BUNDABERG 7,225,000 #* 7,225,000 39 Wallaville Bridge Highway Isis Bruce Highway Bridge 93 km Railway Bridge 98 km (! 18.65 km Isis Highway Tallon Bridge Bundaberg Gauge 7,220,000 )" 7,220,000 Walla Gauge 18.94 km 18 km 98.5 km Bundaberg - Port Road Quay Street Bridge 18.41 km MORGANVILLE #* 41 #* CORDALBA DRINAN #* 7,215,000 42 Wallaville 7,215,000 43 37 36 BOOYAL #* 44 44 7,210,000 Causeway Road 7,210,000 (! 109.8 km 37 #* 36 37 45 CHILDERS 36 36 46 Figtree Stream Gauge 7,205,000 118.8 km 7,205,000 37 47 37 )" 48 51 38 Bruce Highway Bruce Highway Wallaville Bridge 93 km 37 52 B o o y a 7,200,000 7,200,000 l 38 - D !( a 53 l la r n i l R 37 o a d )" Paradise Dam 129.3 km 37 7,195,000 7,195,000 385,000 390,000 395,000 400,000 405,000 410,000 415,000 420,000 425,000 430,000 435,000 440,000 LEGEND 2013 Flood Level 5.01 - 6 12.01 - 13 19.01 - 20 26.01 - 27 33.01 - 34 40.01 - 41 47.01 - 48 Department of Natural Resources and Mines (DNRM) and Department of Transport and Main Roads (DTMR) makes no representations or warranties about the accuracy, reliability, 6.01 - 7 13.01 - 14 20.01 - 21 27.01 - 28 34.01 - 35 41.01 - 42 48.01 - 49 #* Locality Road Cadastre m (AHD) completeness, or suitability for any particular purpose of the data. By using the data you agree 0.01 - 1 7.01 - 8 14.01 - 15 21.01 - 22 28.01 - 29 35.01 - 36 42.01 - 43 49.01 - 50 that DTMR & DNRM is under no liability for any loss or damage (including consequential damage) that you may suffer from use of the data. Further, you agree to continually indemnify the State of (! Hydraulic Structure Location Contour (m) Flood Extent (Estimated by QLD Government) 1.01 - 2 8.01 - 9 15.01 - 16 22.01 - 23 29.01 - 30 36.01 - 37 43.01 - 44 50.01 - 51 Queensland and DNRM and their officers and employees against any loss, cost, expense, damage and liability of any kind (including consequential damage) arising directly or indirectly from or related 2.01 - 3 9.01 - 10 16.01 - 17 23.01 - 24 30.01 - 31 37.01 - 38 44.01 - 45 51.01 - 52 to any claim relating to your use of the data or any product made from the data. Department of Natural )" River Gauge Resources and Mines, Department of Transport and Main Roads © State of Queensland 2013 3.01 - 4 10.01 - 11 17.01 - 18 24.01 - 25 31.01 - 32 38.01 - 39 45.01 - 46 52.01 - 53 4.01 - 5 11.01 - 12 18.01 - 19 25.01 - 26 32.01 - 33 39.01 - 40 46.01 - 47 53.01 - 54 The Commonwealth gives no warranty regarding the Data’s accuracy, completeness, currency or suitability for any particular purpose. Geoscience Australia © Commonwealth of Australia 2013 1:75,000 @ A0 Bundaberg Regional Council Job Number 41-24728 0 2.5 5 Burnett River Flood Study Revision E Date 17 Oct 2013 Kilometres Map Projection: Universal Transverse Mercator Calibration Results Modelled Horizontal Datum: GDA 1994 o Grid: GDA 1994 MGA Zone 56 Recorded 2013 Flood Levels Figure 2 G:\41\24728\GIS\Maps\Deliverables\Public_Information_Session\41-24728_2013Calibration_rev_e.mxd 145 Ann Street Brisbane QLD 4000 Australia T 61 7 3316 3000 F 61 7 3316 3333 E [email protected] W www.ghd.com © 2013. Whilst every care has been taken to prepare this map, GHD (and GA, DNRM, BRC, BOM, DTMR) make no representations or warranties about its accuracy, reliability, completeness or suitability for any particular purpose and cannot accept liability and responsibility of any kind (whether in contract, tort or otherwise) for any expenses, losses, damages and/or costs (including indirect or consequential damage) which are or may be incurred by any party as a result of the map being inaccurate, incomplete or unsuitable in any way and for any reason. Data source: GHD - Flood Modelling Results, Hydraulic Structure and Gauges, Contour/2013; DTMR - Road/2012; DNRM - Cadastre/2012, Subcatchment-Basin/2012; Bundaberg Regional Council - Imagery/2010, Flood Extent/2012; GA - Locality,Seas,Watercourse/2007. Created by:LSabburg.
Load more

Recommended publications
  • Paren T Han Db
    PARENT HANDBOOK Chapter 1: Kalkie State School Chapter 2: Our Policies Chapter 3: Fees and Payments Chapter 4: Arriving and Leaving Chapter 5: Uniforms Chapter 6: Learning at Kalkie Chapter 7: Communicating Chapter 8: Kalkie as a Community Chapter One: Kalkie State School Kalkie State School was opened in 1878 as a one-teacher school. Now we have grown to a school of about 280 students, 11 class teachers plus teacher aides and several specialist and visiting staff. The heritage listed shingle roofed play shed, over 130 years old and listed by the National Heritage Trust, provides shelter for the students after school. A ‘boundary determination of historical significance’ was made by the Environmental and Heritage Department in early 1994 and includes the Cook Pines, Camphor Laurel and Fig Trees; original school building (Block A) and the Shelter Shed These buildings are now listed with the National Trust. A MESSAGE FROM THE PRINCIPAL Welcome to Kalkie State Primary School. It is our aim to provide your children with a comprehensive and quality education and to develop pride in our students- pride in themselves, their efforts and their school. This can be achieved more effectively when home and school work together in a close partnership. A school of course, is more than just buildings and grounds; it is people- people helping one another, people learning. We look forward to getting to know you and working with you to provide the best for all children at Kalkie SS. Please take the time to visit our school to discuss your child’s progress with their teacher or administration.
    [Show full text]
  • Childers Multipurpose Health Service Hotels
    Contact Us Wide Bay Childers Multipurpose Monto Bundaberg Gin Gin Health Service Mt Perry Hervey Bay Childers Eidsvold Biggenden Mundubbera Maryborough Gayndah Childers Main Street, image courtesy of Tourism and Events Queensland About Childers To Bundaberg Rows of red rich soil, green macadamia trees dotting Noakes St the horizon, “hedges” of sugarcane along the Cevn St To Maryborough North St roadside and a main street with history and heritage Bruce Hwy oozing out of its facades — history, heritage, arts, Macrossan St culture and food is all here in Childers. Broadhurst St Nelson St CHILDERS Childers is situated on the Bruce Highway and MULTIPURPOSE Mcilwraith St HEALTH SERVICE lies approximately 325km north of Brisbane, 50km Morgan St Thompson Rd south-west of Bundaberg and 70kms north-west of To Biggenden Hervey Bay. The main street is lined with shady leopard trees, historic buildings and many cafes, clubs and Childers Multipurpose Health Service hotels. The town’s business centre offers multiple , 44 Broadhurst Street, Childers Qld 4660 Country hospitality supermarkets, post office, laundromat, newsagent, pharmacies and specialty stores, which cater to most Phone: 07 4192 1133 professional health service of your buying needs. It also boasts an art gallery, library and historic theatre. WBHHS_0115_SEP2019 Wide Bay Hospital and Health Service respectfully acknowledges the Traditional Custodians of the land and water on which we work and live. We pay our respects to Elders and leaders past, present and emerging. About Childers Services we offer Staying in touch General services We understand the importance of family and friends Multipurpose Health Service • 24-hour Emergency • PORT/PICC care in your recovery.
    [Show full text]
  • Bundaberg Region
    BUNDABERG REGION Destination Tourism Plan 2019 - 2022 To be the destination of choice for the Great Barrier Reef, home of OUR VISION Australia’s premier turtle encounter as well as Queensland’s world famous food and drink experiences. Achieve an increase of Increase Overnight Increase visitation to 5% in average occupancy KEY ECONOMIC Visitor Expenditure to our commercial visitor rates for commercial $440 million by 2022 experiences by 8% GOALS accommodation FOUNDATIONAL PILLARS GREEN AND REEF OWN THE TASTE MEANINGFUL CUSTODIANS BUNDABERG BRAND As the southernmost gateway to the Sustainability is at the forefront of By sharing the vibrant stories of our Great Barrier Reef, the Bundaberg the visitor experience, with a strong people, place and produce, we will region is committed to delivering community sense of responsibility for enhance the Bundaberg region’s an outstanding reef experience the land, for the turtle population and reputation as a quality agri-tourism that is interactive, educational for the Great Barrier Reef. destination. and sustainable. ENABLERS OF SUCCESS Data Driven Culture United Team Bundaberg Resourcing to Deliver STRATEGIC PRIORITY AREAS Product and Experience Visitor Experience Identity and Influence Upskilling and Training Marketing & Events Development BT | Destination Tourism Plan (2019 - 2022) | Page 2 Bundaberg Region Today .......................................................................................................................................................... 4 Visitation Summary ........................................................................................................................................................
    [Show full text]
  • Map 12: Bundaberg Regional Council
    Flying fox camps within Local Government Areas of Queensland Map 12: Bundaberg Regional Council 152°0'0"E 152°10'0"E 152°20'0"E 152°30'0"E Littabella S Regional Park S " " 0 0 ' ' 0 Watalgan SF, 0 4 4 ° GLADSTONE ° 4 Arthur's 4 2 REGIONAL Ck Rd Mouth of 2 (! Watalgan Kolan River Moore COUNCIL State Regional Park Park Forest Kolan Beach Littabella (! River, (! National Park Avondale Yandaran Barubbra State Island Forest Regional Park Gooburrum, Mon Repos Billabong Regional Drive Park Bargara, S S " (! ! Larder Street " 0 ! 0 ' ( ' 0 (! 0 5 Bargara, 5 ° Monduran ER ° 4 IV 4 2 R ! 2 State N ( Fairway LA (! Forest 1 KO Avoca, (! (! Drive (! ! McCoys North ! ( Creek Bundaberg, Bundaberg (! Perry Street Elliott Heads, Bathurst Street (! BUNDABERG G K I EE LL CR EN N REGIONAL S GI C N R GI E Bullyard COUNCIL EK Regional Park S S " " 0 0 ' Bingera ' 0 0 ° ° 5 Regional 5 2 Park 2 2 Bingera Bingera National Regional Park Park 1 Burrum Coast National Park Elliott River State R E Forest V I R T T E N R Cordalba U B National G R Park E R G IV O E R R Y Cordalba S S " Booyal State " 0 0 ' ' 0 State Forest 0 1 1 ° Forest ° 5 5 2 2 Horton, M U R E Station Childers R V R I U Road State R B Good (! Forest Night Scrub Childers FRASER COAST National Park (! (Mango Hill Road) REGIONAL S C A R N E NORTH BURNETT D COUNCIL E Y K Wongi REGIONAL State Forest ¯ COUNCIL 152°0'0"E 152°10'0"E 152°20'0"E 152°30'0"E 0 2.5 5 10 15 20 25 30 Map frame location Cooktown km !.
    [Show full text]
  • Delivering Today Securing Tomorrow
    DELIVERING TODAY SECURING TOMORROW ANNUAL REPORT 2009–10 CONTENTS 2 Corporate Profile 24 Community 4 CEO’s Review 26 Our Leaders and Our People 6 Chairman’s Outlook 34 Corporate Governance 8 Financial Summary 42 Financial Report 12 Performance Summary 68 Statement of Corporate Intent Summary 14 Delivering Today 72 Key Statistics 16 Securing Tomorrow 81 SunWater Scheme Map 20 Environment 22 Safety Communication Objective This annual report aims to provide accurate information to meet the needs of SunWater This annual report is a summary of programs and stakeholders. SunWater is committed to open activities undertaken to meet key performance and accountable governance and welcomes your indicators as set out in SunWater’s Statement of feedback on this report. Corporate Intent 2009–10 (SCI) and summarised on page 68 of this report. The annual report can be accessed on SunWater’s website: www.sunwater.com.au. The report chronicles the performance of the organisation and describes SunWater’s Hard copies are also available on request: initiatives, achievements and the organisation’s SunWater future plans and prospects as a leader in water PO Box 15536 City East, Brisbane QLD 4002 infrastructure development and management. Ph: +61 7 3120 0000 Fax: +61 7 3120 0260 It also communicates significant events impacting SunWater Limited is a registered water service the organisation that have occurred after the provider under the Water Act 2000. reporting period. www.sunwater.com.au HIGHLIGHTS DELIVERING TODAY 1,347,339ML of water was delivered by SunWater
    [Show full text]
  • Annual Report
    Bundaberg East State School ANNUAL REPORT 2017 Queensland State School Reporting Inspiring minds. Creating opportunities. Shaping Queensland’s future. Every student succeeding. State Schools Strategy 2017-2021 Department of Education 1 Contact Information Postal address: 33 Scotland Street Bundaberg East 4670 Phone: (07) 4132 6111 Fax: (07) 4132 6100 Email: [email protected] Additional reporting information pertaining to Queensland state schools is located on the My Webpages: School website and the Queensland Government data website. Contact Person: Principal Word tog School Overview Bundaberg East State School has an enrolment of 570 full-time students attending the co-educational campus. Located at 33 Scotland Street, Bundaberg East State School offers classes from Prep to year six in 24 classes. Our school has produced outcomes for students of which our entire school community can be proud. For students in its care, Bundaberg East State School continues to provide high-quality education programs across a range of academic, personal development and cultural activities. We offer instrumental music, sports programs, ICT education program and robotics. Key strategies of parallel leadership and building a strong sense of community have all contributed to the appeal of Bundaberg East State School as a preferred educational option, and also enabled our school to cope well with enrolment growth. Principal’s Foreword Introduction School Progress towards its goals in 2017 To complement our implementation of the Learning Plans, the injection of significant funding through the Great Results Guarantee provided valuable funds to support our students. Bundaberg East State School prides itself on instilling all students with the desire for personal excellence.
    [Show full text]
  • Recovery Plan for the Isis Tamarind Alectryon Ramiflorus 2003-2007
    Recovery plan for the Isis tamarind Alectryon ramiflorus 2003-2007 Prepared by Mirranie Barker and Stephen Barry for the Alectryon ramiflorus Recovery Team Recovery plan for the Isis tamarind Alectryon ramiflorus 2003-2007 © The State of Queensland, Environmental Protection Agency Copyright protects this publication. Except for purposes permitted by the Copyright Act, reproduction by whatever means is prohibited without the prior written knowledge of the Environmental Protection Agency. Inquiries should be addressed to PO Box 155, BRISBANE ALBERT ST, QLD 4002. Prepared by: Mirranie Barker and Stephen Barry for the Alectryon ramiflorus Recovery Team Copies may be obtained from the: Executive Director Queensland Parks and Wildlife Service PO Box 155 Brisbane Albert St Qld 4002 Disclaimer: The Commonwealth Government, in partnership with the Queensland Parks and Wildlife Service, facilitates the publication of recovery plans to detail the actions needed for the conservation of threatened native wildlife. The attainment of objectives and the provision of funds may be subject to budgetary and other constraints affecting the parties involved, and may also be constrained by the need to address other conservation priorities. Approved recovery actions may be subject to modification due to changes in knowledge and changes in conservation status. Publication reference: Barker, M. and Barry, S. 2003. Recovery plan for the Isis tamarind Alectryon ramiflorus 2003- 2007. Report to Environment Australia, Canberra. Queensland Parks and Wildlife Service, Brisbane. Cover Illustration Alectryon ramiflorus, by Ms. Margaret Saul, 1992. 1 Contents Summary 3 1. Introduction 5 Taxonomy 5 Description 5 Life history and ecology 5 Distribution and habitat 6 Habitat critical for survival and important populations 7 Threatening processes 8 Existing conservation measures 8 Benefits to other species or communities 8 Consultation with indigenous people 9 Affected interests 9 Social and economic impact 9 International obligations 9 2.
    [Show full text]
  • Referral of Proposed Action Form
    Referral of proposed action What is a referral? The Environment Protection and Biodiversity Conservation Act 1999 (the EPBC Act) provides for the protection of the environment, especially matters of national environmental significance (NES). Under the EPBC Act, a person must not take an action that has, will have, or is likely to have a significant impact on any of the matters of NES without approval from the Australian Government Environment Minister or the Minister’s delegate. (Further references to ‘the Minister’ in this form include references to the Minister’s delegate.) To obtain approval from the Environment Minister, a proposed action should be referred. The purpose of a referral is to obtain a decision on whether your proposed action will need formal assessment and approval under the EPBC Act. Your referral will be the principal basis for the Minister’s decision as to whether approval is necessary and, if so, the type of assessment that will be undertaken. These decisions are made within 20 business days, provided sufficient information is provided in the referral. Who can make a referral? Referrals may be made by or on behalf of a person proposing to take an action, the Commonwealth or a Commonwealth agency, a state or territory government, or agency, provided that the relevant government or agency has administrative responsibilities relating to the action. When do I need to make a referral? A referral must be made for actions that are likely to have a significant impact on the following matters protected by Part 3 of the EPBC
    [Show full text]
  • Bundaberg Flood Protection Study Developing a 10-Year Action Plan for Flood Mitigation in Bundaberg
    October 2016 – not Government policy Technical Discussion Paper Bundaberg flood protection study Developing a 10-year action plan for flood mitigation in Bundaberg. Option D – Bundaberg East levee Option D includes construction of a levee along the south bank of the river to reduce flooding in Bundaberg East. It would require construction of two floodgates (with one large floodgate for Saltwater Creek). Stage 2 of the Bundaberg flood protection study involves assessing 11 flood mitigation options, including those identified through consultation with the Bundaberg community in late 2015. Option overview Option D aims to protect Bundaberg East by constructing It would involve: a levee on the river bank and across the Saltwater Creek • Construction of a levee generally following Quay Street floodplain. The levee would protect the Bundaberg and a section heading north towards the mill. The East area from inundation from the Burnett River in the levee would be a combination of concrete wall and 1 1.5% AEP flood event. earth mound. • A flood gate across Saltwater Creek, which would be closed during times of Burnett River floods. Figure 1 : Option layout DISCLAIMER: Jacobs has implemented reasonable, current commercial and technical measures using the usual care and thoroughness of a professional firm in the creation of these maps from the spatial data, information and products provided to Jacobs by the Department of Infrastructure, Local Government and Planning (DILGP); Bundaberg Regional Council (BRC); GHD and other consultants; and data custodians including Department of Natural Resources and Mines (DNRM) and data obtained from the Queensland Spatial Catalogue (QSpatial) under the Creative Commons - Attribution 3.0 Australia licence.
    [Show full text]
  • Great Barrier Reef Catchment Loads Monitoring Report 2010-2011
    Total suspended solids, nutrient and pesticide loads (2010-2011) for rivers that discharge to the Great Barrier Reef Great Barrier Reef Catchment Loads Monitoring 2010-2011 Prepared by: Department of Science, Information Technology, Innovation and the Arts © The State of Queensland (Science, Information Technology, Innovation and the Arts) 2013 Copyright inquiries should be addressed to [email protected] or the Department of Science, Information Technology, Innovation and the Arts, Brisbane Qld 4000 Published by the Queensland Government, 2013 Water Sciences Technical Report Volume 2013, Number 1 ISSN 1834-3910 ISBN 978-1-7423-0996 Disclaimer: This document has been prepared with all due diligence and care, based on the best available information at the time of publication. The department holds no responsibility for any errors or omissions within this document. Any decisions made by other parties based on this document are solely the responsibility of those parties. Citation: Turner. R, Huggins. R, Wallace. R, Smith. R, Vardy. S, Warne. M St. J. 2013, Total suspended solids, nutrient and pesticide loads (2010-2011) for rivers that discharge to the Great Barrier Reef Great Barrier Reef Catchment Loads Monitoring 2010-2011 Department of Science, Information Technology, Innovation and the Arts, Brisbane. This publication can be made available in alternative formats (including large print and audiotape) on request for people with a vision impairment. Contact (07) 3170 5470 or email <[email protected]> August 2013 #00000 Executive summary Diffuse pollutant loads discharged from rivers of the east coast of Queensland have caused a decline in water quality in the Great Barrier Reef lagoon.
    [Show full text]
  • Bundaberg Water Supply Scheme Resource Operations Licence
    Resource Operations Licence Water Act 2000 Name of licence Bundaberg Water Supply Scheme Resource Operations Licence Holder Sunwater Limited Water plan The licence relates to the Water Plan (Burnett Basin) 2014. Water infrastructure The water infrastructure to which the licence relates is detailed in attachment 1. Authority to interfere with the flow of water The licence holder is authorised to interfere with the flow of water to the extent necessary to operate the water infrastructure to which the licence relates. Authority to use watercourses to distribute water The licence holder is authorised to use the following watercourses for the distribution of supplemented water, including sections of tributaries where supplemented water is accessible— (a) the part of the Kolan River extending from the Kolan Barrage at AMTD 14.7km upstream to the ponded limits of Fred Haigh Dam at AMTD 116km; (b) the part of the Burnett River extending from the Ben Anderson Barrage at AMTD 25.9km to within the ponded area of Paradise Dam at AMTD 162.8km; (c) the part of Sheepstation Creek extending from the confluence of Sheepstation Creek and the Burnett River at AMTD 0.0km upstream to the Gin Gin Main Channel outlet at AMTD 8.6km; (d) the part of St Agnes Creek extending from the confluence of St Agnes Creek and the Burnett River at AMTD 0.0km upstream to the St Agnes main channel outfall into the St Agnes Creek crossing on Walla Road at AMTD 1.5km; (e) the part of Welcome Creek extending from the Welcome Creek Crossing on Gooburrum Road upstream to the Welcome Creek crossing on Tolls Road.
    [Show full text]
  • PAPERS Department of Geology
    PAPERS Department of Geology University of Queensland Volume 11 Number 3 PAPERS Department of Geology • University of Queensland VOLUME 11 NUMBER 3 Cainezoic volcanic centres in southeastern Queensland, with special reference to the Main Range, Bunya Mountains, and the volcanic centres of the northern Brisbane coastal region. A. EWART and A. GRENFELL P. 1 - 57 Upper Mantle xenoliths and megacrysts and the origin of the Brigooda basalt and breccia, near Proston, Queensland. A.D. ROBERTSON, F.L. SUTHERLAND and J.D. HOLLIS P. 58 - 71 Cainozoic volcanic rocks in the Bundaberg-Gin Gin-Pialba area, Queensland P. 72 — 92 A.D. ROBERTSON 72 CAINOZOIC VOLCANIC ROCKS IN THE BUNDABERG - GIN GIN - PIALBA AREA, QUEENSLAND by A.D. Robertson ABSTRACT. Six periods of volcanic activity have been recognized during the Cainozoic Era in the southern portion of the Bundaberg and the northern part of the Maryborough 1:250 000 sheet areas. Most have been short lived (less than 15 to 2 Ma) and all are of limited areal extent. The composition of the lavas vary with successive eruptive periods. The Palaeocene to early Eocene volcanics (Gin Gin and Pemberton Grange Basalts) are dominantly theoleiitic in composition. By the mid-Miocene, alkali basalt was being extruded. Moderately to strongly undersaturated lavas (Tararan and Maroondan Melanephelinites) were extruded during the Pliocene, and by the Pleistocene the magma composition had changed back towards the alkali basalt — hawaiite field. The late Pleistocene Berrembea Basalt exhibits a range of composition from moderately undersaturated to lava having tholeiitic affinities. The Tararan Melanephelinite with its entrained upper mantle — lower crustal xenoliths implies magma generation in the upper mantle with a direct passage through the crust.
    [Show full text]