North Island

176 deg. 00’ 05’ E. Long 176 deg. 10’ 15’ 176 deg. 20’ E E 000 GEOLOGICAL LEGEND 000 70 10 27 AGE 71 72 73 74 75 76 77 78 7980 81 82 83 84 85 86 87 88 8990 91 92 93 94 95 96 97 98 9900 01 02 03 04 05 06 07 08 09 28 64 00 000 N 64 00 000 N Sand, silt and gravel of modern streams fa fo

Fixed foredunes fo tm 99 99

Moving dune sand fm fa HOLOCENE fa fa

35’ fa Peat fs 98 98 10 ka tm tm tm Fluvial terrace deposits post-dating the Hamilton Ash tt fs fa 97 97 Fluvial terrace deposits post-dating the Waiteariki Ignimbrite: Matua Subgroup fluviatile sands and gravels, lignites, estuarine tm

sands, lacustrine silts; Pahoia Tephras fa 35’

v fa v

Mamaku Ignimbrite: v v v v pink to grey, partially welded crystal-poor ignimbrite, v v tp Matakana Island mav with vapour-phase altered pumice v v tm v 96 96 Waimakariri Ignimbrite: fa tm pale grey, partially welded, pumice-rich ignimbrite, with wk fo white to pale brown pumice containing plagioclase, quartz and hypersthene Aongatete Te Ranga Ignimbrite: PLEISTOCENE mb whitish grey, non-welded, crystal- and pumice-poor ignimbrite, tr 95 95 containing small pinkish-grey pumice, and lithics of obsidian and rhyolite tp Te Puna Ignimbrite light-grey, partially welded, crystal- and pumice-rich tp ignimbrite, with crystals of plagioclase, quartz and hornblende tm fa fa Ongatiti Ignimbrite: fa 94 94 whitish grey, partially to densely welded, crystal- and pumice-rich fo ignimbrite with crystal clots of plagioclase, quartz, hornblende and ot hypersthene 1.8 Ma Papamoa Ignimbrite fm Bay of Plenty buff brown, partially welded, crystal- and pumice-rich ignimbrite; fa lower unit contains andesitic (dark grey) to rhyolitic (whitish-grey) pumice; pa upper unit is rhyolitic. Lithics of andesite and rhyolite 93 93 Waiteariki Ignimbrite tp tm grey to dark brown, non-welded to densely welded and lenticulitic, tm fs crystal-rich ignimbrite, with dark grey lenticular pumice and lithics wt of rhyolite and andesite tp tm

fa fa Omokoroa Mt. Maunganui Kopukairua Dacite: v v v

v tm Beach Moturiki Is. grey to light-grey, dacite to rhyodacite lavas containing v

v v 92 fs 92

v kd v phenocrysts of plagioclase, hornblende, hypersthene and v v fa v v Motuotau Is. quartz; biotite also present in rhyodacite lavas fa mr Matakana Basalt: tm PLIOCENE fo dark grey, porphyritic basalt lava with phenocrysts of mb wt tm plagioclase, hypersthene and olivine altered to iddingsite fa Mt. Drury

Minden Rhyolite: 91 tr tp 91 cream to grey to pink, spherulitic and flow banded rhyolite mr lava with phenocrysts of plagioclase, quartz, hornblende, tm biotite and hypersthene tm Motuhoa Island

Otawa Volcanics: MOUNT MAUNGANUI v

v v v OMOKOROA ROAD v tm dark grey, fine to medium-grained porphyritic andesite lavas v v tm fa v

v ov containing phenocrysts of plagioclase, hypersthene, hornblende, v v tm v augite and minor quartz v v 90 90 2 tm Tauranga Harbour tm wt fa 89 89 S. Lat. 37 deg. 40’ wt fa fa tm Contact Topographic fo tm Located accurately Rivers, Streams 88 fa 88 fa Located approximately Reclaimed State Highways 2 ROAD fa Fault fa S. Lat. U tm 37 40’ Located accurately 29 D ESDAILE tm tr 87 87 U Inferred ?? fa fs D r tm GRID G - ive fs M R Concealed MAG. TE PUNA STN. RD TAURANGA NORTH Angle a NORTH tm o fa ir tr Features a W 86 5 86 Bedding (strike & dip) MAGNETIC NORTH ROAD tp tm 20 on this map is 23 tm tr deg. (400 mils) EAST of tm Outcrop tm GRID NORTH during 1996 TE PUNA fa fo increasing at the rate of fs PAPAMOA Trig Station - beaconed approx 1/2 deg. (9 mils) over 8 years. fa fa - unbeaconed 85 85 BEACH YOUNGSON ROAD Bethlehem tm Matapihi ROAD

tp 84 84 mr fs Quarry tm fa tr mr ? Mangatawa ROAD Minden Peak tm Papamoa Beach tt NZMS 260 SERIES SHEET LAYOUT 2

tr ? tm 83 83 mr tm WHAKAMARAMARA Maungatapu fa fo Upuhue DOMAIN ROAD wt tm tm mr tm T13 U13 ROAD ROAD wt tt ? 82 pa 82

Welcome Bay v fa tm v fa v

wt CAMBRIDGE tr v

CRAWFORD v

fa v

ROAD v v v Whakamarama v wt v tm

v kd

BAY v v fa fa tm v

T14 U14 V14 v v v pa v v tm v v v

WELCOME v

81 v 81 v v v

v v v v v v

wt v Kopukairuav v v ?

fa v

v v v v v

pa ? v v v v v v

29 fa v v v v mr

v ROAD

v v v v v

v v v v v v

v v v v

v Papamoa v

T15U15 V15 v v U D v

6 Waitao v v v v v ? 80 v v 80 ?

Quarry CUTTING

v BELL ROAD

v mr ot v

ot v v v v v fa

v v v

45’ tr v pa v v v

v v

v v fo

v v v

v 42 v v

v v v

v v

v ROCKY v

v v v v v v v

pa v v v v

v v v

v REID ROAD v v v

v v v

tr v v

v v v v

v ROAD v

v v

v fm v

2 v v v v v

79 v 79

TEBBUTT tm v v

v v v

K v

tt v v v

v v v v ROAD Waikite v

tr v A v v

OHAUITI ROAD ov v v v v v

v v 2 I v

T v v v

v v v

v tt v E v

v v v v v

v A ?? v

tr M D v v v

v 20 v v A O v v v

K O R v WAITAO fa + fs

v v v v v

v v v

2 v v ov

mr 2 v

tr 20 v v v v v v v v

fa v v v v v v v

tm v v 22 v v v

v v v

wt v v

v v v

v v v v

v v 45’

Manawata v v v v v v v v wk v

v v v v

v 78 v 78 v v v v v

v v v

? v v v v U v

v pa v D v

mr ot wk v v v v v v v v

ot v v v

OROPI ROAD v v wk v v v v v v v

v v v v

v v

v v v v v

fa v v v v v v v v fa v

v U v v v v v v

pa v v v v v v v Kaiate P

v v v v fa v v

v v v v v

v v v v P v v v

wk v v v v v v v

v mr ovv Fallsv v E v v

? v v v v R v v v

wk v v P

v v A v

v v P v

v v v A

v v v

v v M

v O KAITUNA ROAD

77 v 77

v v Av v

v v v

v v v v v

v v v v Rv v

v v O

PORI v v v v v v v

v v v tr v v v pa v

mr v v A v v

v v v v v v v v

v v D v v v

v v v v

PORI wk wt v v v v v v tt

ROAD v v

v v

v v v v v

v v v v

v v v

v v

v v ? v v v v v v v v v v

wk v v v

v v v tt v

ma pa v v v

v v v v v

v v v v v v v v v

PYES PA ROAD

v v v v

v v v

wk v v v

v v v v v

Kaikaikaroro v

v v v pa v v v v v v

v v v v v v v

v v v v v

v v v fa v v v v v v v v v v

76 K v v v v v v v 76 v v v v v

v v v v

v v v

U v v v v v v v

v v v I v

M M R v O v v v v

U A v v v v v v v v v v v

v v v v

I K D v v v v Wharetetarakehov v PAH ROAD v v v v v v v v v v v v v v

v v v v v v v v v v

v v v

v v

v v v v v

v ? K v v v v v v

v v v v v v v v v v

v v v v

v v v v v a

v v v v v ov

v v v v v v v v

wk v i

v v v v v v

v v v mr v v v v t

v v v

v v

v v v v v v v

v v v v v v v u

v v v v v v v v v v v v v

v v v v

v v v v v n

v v v v v v

v v v v v v v v v tt

v tt v v

v v v v v a v v v v v

v v v v

v v v

v v v v v v v

v v v v v v

v v v v TE PUKE

v v v v v v v v v v

v v v v

v v v v v v v v

v v

v v v 75 v v 75 v v v v v

v v v v v v tt v

v v

RUAHIHI v

v ?v v v v v R v v v v v

v v v v v v

v v v v

v v v v v v v v

v v

v v v v

v v v v i

v v v v v v v v v v v v v v v v v v

wk v v

v v v v v v v v

mav

v v v v v v

v v v v v v v v v v v e v

v v v r

v v v v v v v v v v v v

v v v v

ROAD v v v v

wk v v v v v v v v v v v v v wt v v v

v v

v v v v v v v v v v v v v v v v v v v tt

v v

v v v v v v v

v v v v v

v v v v v v v v

v v v v v

ov v v v v v v v v v v

v v v v v v

v v v v v

v v v v v v v v v v v

v v v v v

v v v tt

v v v v v v

v v v v v v v v v v v v v v v

v v

v v v

v v v v v v v v

v v

v v v

v v v v v v v v v v v v v v

mr v v v v v v v

v ?

v v v v v v

v v ROAD v v v v v v v v v v

v v v v v v v v

v v v v v v

v v v v v

v v v Otaua v v v v v v v v

v v v v v v

v v v v v v v v

74 ROAD v v v 74

v v v v v v

v v v v v v v v v v v v v v v v v v

v v v v

v v

v v v

v v v v v v ? v

v v

v v v v v

v v v v v v

v v v v v v v v

v v v v v

v v

v v v v v v

v v v v v v v

BELK ROAD v v v v v v v v v

v v v v v v

v v v v v v v v v v

v v v v v v ma v v v v

v v v v

v v v v v

v v v v v v v v v v

v v v v v v v v v v v v v v

OROPI v v v v v v v

v v v v v v

tm v v v

v v v

v v v v v v v v

v v

v v v v v

v v v v v v v v

v v v v v v v

v v v v v v v v v v v mr v v

v v v

v v v v v

v v v v v v

v v v v v v v

v v v v v v v v v v v v

v v v v v v

v v v v v v v v v

v v v v v v v v v v v v v

v v v v v v v v v v v v

wk v v v v v v v v v

v v v v v v v v v v v v v v

v v v v v v v v v TE TUMU ROAD v

v v v v v

v v v ? v ma

v v v

v v v v v v v

v v

v v 29 v

v v v v v v

v v v

v v v v v v v v

v v v v v v v v v NORTH v v v

v v v v v v v v v

v v v v HEREFORD

v v v v v v v v v

v v

v v v v v

ma v v v v v v v v v v v v v v

v v v v v v v v v

v v v fa

v v v v v v v v v v v

v v v v v v v tt

v v v

v v v v v ? v

v v v v v v v v v v v v v v tt v

v v v

v v v v v

v v v

v v v v v v v v v v

v v v v v v v

v v v v v v v v v

v v v v v v

v v v v v v v v v v v v

v v v v v v

v v v v v v v Otawa v v v v v v

73 v 73

v v v v v v v v v v v

v v v v v

ISLAND v

v v v v v v v v v v v v

v v v v v v v v

v v

v v v v v v v v v v v

v v

v v v v v v v v

v v v v

v v v v v v v v v v v v v v

v v v v v v v

v v v v

v v v v v

v v v v

v v v

v v v v

v v v v v v v v v v

v v v v v v v v

v v v v v v v v v

v v v v v

v v v v v v v v v

v v v

v v v v v v

v v v v ma v v v

v v v v v v v v

v v v v v v v v v v v

v v v v v v v v v v v v

v v v v v v

v v v v v v v v v v v ? v

wt v v v v v v v v

v v

v v v v v v v v v v

v v

v v v v v v v v v

v v v v

v v v v v v v v v v v v v

v v v v v v v v v v v

v v v v

v v v v v

v v v

v v v v v v v v v v v v

v mr v v v v v

v v v

v v v v v v v v v

v v v v v v

McLaren v tt

v Mt. Misery v v v v v v v v

OMANAWA ROAD v v v v v v

v v v v

v v v v v v v v

v v v v ov v v

v v wt v v v v v v v v v v

v v v v v v v v v v

v v v v v v v

v v v v v v v v v v v v v v

v v v v v v ? ma v v v

v v v v v v v v v v v v v 5 v

Falls wk v v v v v v v

v ma v v v

v v v v v v v v

v v v v v v v v v

v v v v

v v v v v v

v v v v v

v v ov

v v

v v v tt

v v v v v v v v v v v

v v v v v v v v v v

v v v v v

v v v v

v v v v v v v v v v

v v v v v v v RANGIURU ROAD v

v v tt

v v v v v v

v v v v v

v v v v v v v v

v v v v v TE MATAI ROAD

v v v v v v v v v v v v

ma v v v v v v v v v v

v v v v

v v v v v v v

v v v v v v v v v v v v

v v v v v v v v v v

v v

v v v v Otara

v v v v v v v v v v v

OAD v v v v v v v v v v v

v v v v v v v v v v

v ? v v v v v v v v

v v v v v v

v v v v

v v

v v v v

v v v v v v v v v v

R v v v v v v

v v

72 v 72 v v v v v v

v v v

v v v v v v v v

v v v

v v v v v v v

v v v v v

v v

v v v v v v v v

v v v v v

v v

v v v v v v v v v v v

v v v v v v v v v v

v v v v

v v v v v v

v No.1 ROAD v v v v v v v v v v v

v v v v v v v v v v

v v v v v v v v v v v v v v

v v

v v v v v v v

v v

v v v v

v v v v v v v v

v v v v v v v v v

v v v v v

v v v v v v

v v v v

v v v

v v

v v v

v v

v v v v v v v v v v

v v v v v v v v v

v v v v v v

v v v v

v v v v v v v

v v

v v v v v v v v v

McLAREN v v

v v v v v v

v v v

v v v v v v v v

v v v ? v v v v v

v v

v v ma v v v v v v v v

v v

v v v v v v v v v v

FALLS v v v v fa

v v v v v v v

v v v v v v v v v v

v v

S v v v v v v v v v v v v v v v

v v v v v v v v v v v

tm v v v v ma

v v v v v v v v v v v v v v v

v v v v v v v v v v v v v

v v v

v v v v v v

O v v v v

v v v

v v

v v v

v v

v v v v v v v v v v v

v ? v v v v v v v

v v v v v v v v v v

v v v v v v v

v v v v v v v v v v v v v No.4 ROAD tt

No.3 ROAD

L v v v v v v v

U v v v v

v v v v v v

v 2

v v v v

v v v v v

v v v

v v v v v v v v v v v

v v v v v v v v

v v v v

v v v v v v v

v v v v v v

v v v v

D v v v v v v v v v v

v v v

v v v v v v tt

v v v v v v

v v v v v v v v v v v v v

v v v

v v v v v v No.2 ROAD

v v

v v v v v v v

I v

v v v v v v v v v v v v v v v v v

v v v v

E v v v v v v v

v v v v

v v

v v v v

D v v v v v v v v

v v v v v v v v v v

v v v

v v v v v v

v v v v v

v v v

R v v v v v v v v

v v v v

S v v v v v v v

v v v v v v v

v v v

v v v v v v

v v v v v v v v v

v v v v

v v v v v v v

v v

v v v v v v v v v v v

v fa

v v v v

v v v v v

v v v v v v v v v v

v v

v v v v v v v v

v v v v v

v v v v v v v v v v v v

R v

v v v v v v v v v v

71 v 71 v

v v v

v v v v v

v v v v v v v

v v v v v v v v v v

v v v v v v v v v

v v v v

O v v v v v

v v v

? v v v v v v

v v v v v v

v v

v v v v v v v v

v v v v v v

v v

v v v v v v v

A v v ? v v

v v v

v v v v v

v v v v v v

v v v v v v v v

v v

v v v v v v v v v v

v v v v v v v v v

v v v v v v v

D v v v v

v v v v v

v v v v v v v v

v v

v v v v v v v v v

v v v v v v

Pyes Pa v

v v v v v v v v

v v v

v v v v v v v v v v

v v v

v v v v v v

v v v v v v v

wk v v v v v v v v v v v v

v v v v

v v v v v

v v v v

v v v v v v fa

v v v

v v v v

v v

v v v

v v

v v v v v v v

v v

v v v v v

v v

v v v v v v v v v

v v v v v

v v v v v v v v v v v

ma v mav

v v v

v v v v v

v v v v v v v v v v v v v v v

v v ov v v v v v

v v v v v v v v v v v v v

v v v v v v v

v v v v v

v v

v v v

wk v

v v v v v v v v v

v v

v ? v

v v v v v v v v v

v mr

v v v v v v v v v v v v v v

v v v

v v v v

wk v v v v v v v v Moirs Reef v v v

v v v v v

v wk v v v v v

v v v v v v

v v

v v v v v v v v v v v

v v v v

v v v v v v v v v

v ma v

v v v v v v

v v v v

v v

v v v v v v

v v

v v v v v v tt v v

vma v v

v v v v wk v v v v v v

v v v v v

v v v

v v v v v v v v v v v v

37 deg. 50’ v v v

v v v v

v v v v v v v v

v v v v v v v v v v

v v v v v v v v

v v

v v v v

v v v v v v

v v

v v v v v v v v v v v

v v v v v v v ma v

v v v v v v v

v v

v ma v

v v v v v

v v v v v v v v v v

v v

v v v v v v v v

ma v v

v v v v v v

v v v v v v v v v v

v v v v

v v v v v v v v v v v v v ma

v v v v v v

v v v v v v v v v v v v v

v v v

v v v v v v v v v v v v v v v v v v v v

v v v v

v v v v v v v v

v v v

v v v ? v v

v v v v v v v

v v

v v v v v v

v v v

v v v v

v v v v v v

v v v v v v v v v v v v v v v v v v v v v v v v 63 70 000 N v v 63 70 000 N E 71 72 73 74 75 76 77 78 7980 81 82 83 84 85 86 87 88 8990 91 92 93 94 95 96 97 98 9900 01 02 03 04 05 06 07 08 09 E 000 000 10 70 28 27

176 deg. 00’ 05’ E. Long 176 deg. 10’ 15’ 176 deg. 20’

BIBLIOGRAPHIC REFERENCE DISCLAIMER REPRODUCTION NOTICE SCALE 1 : 50 000

Briggs,R.M., Hall,G.J., Harmsworth,G.R., Hollis,A.G., Houghton,B.F.* ,Hughes,G.R., Morgan,M.D., Whitbread-Edwards,A.R. This map shows an interpretation of the geology of the Tauranga area. This map, or any portion of it, may not be reproduced without 1996: Geology of the Tauranga area. The small scale of the map has necessitated the omission of some small features the express permission of: 120.5 01 345 10 km Department of Earth Sciences Occasional Report No.22, University of Waikato, Hamilton and exaggeration of others in the interests of clarity. The map should not be used C University of Waikato Department of Earth Sciences, Published in collaboration with Environment B.O.P, and *Institute of Geological & Nuclear Sciences Limited. for building-site assessment, land-use planning, engineering projects, quarry operations, C Topographical information derived from DOSLI mapping. This map is drawn on the New Zealand Map Grid Projection, a minimum-error conformal projection.The grid is the New Zealand or any other work for which site-specific investigations should be made. Digital licence number CD/093604/1 crown copyright reserved Map Grid, showing coordinates in metres in terms of the Geodetic Datum 1949, based on the International (Hayford) Spheroid.