The influence of half-graben syn-depositional tilting on thickness variation and seam splitting in the Brunner Coal Measures, New Zealand

Titheridge, David

doi:10.1016/0037-0738(93)90004-o

Cited by 16 publications

(10 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Haszeldine and Anderton (1980) proposed periodic tectonic rise in the source area, which led to spreading of channels of braided rivers across the flat protected coastal plain. Titheridge (1993) describes syn-depositional fault activity and deposition of such deposits within individual blocks of half-grabens. According to Nemec (1992) coal deposition in the environments of the braided rivers and coastal plains is connected with relatively high water level, when the floodplain is flooded, which could be related to sea-level changes.…”

Section: Facies Associationmentioning

confidence: 99%

Depositional environment and provenance of the Gresten Formation (Middle Jurassic) on the southeastern slopes of the Bohemian Massif (Czech Republic, subsurface data)

Nehyba¹,

Opletal²

2016

AJES

View full text Add to dashboard Cite

The deposits of the Gresten Formation (Middle Jurassic) obtained from deep wells in the territory of southern Moravia (Czech Republic) have been newly examined with the aim to better describe their provenance and depositional environment. Deposition within a relatively broad flood plain with fluvial/distributive channels, crevasse channels, crevasses splays and coal-swaps have been recognised in the majority of well cores. Open marine deposits are less common. The heavy mineral association is quite stable, with significant dominance of garnet and commonly also with high content of zircon. The mineralogical spectra of garnet types are broad with strong dominance of almandines. The rutiles were mostly derived from metapelites and additionally also from metamafic rocks and pegmatites. The results point to mixed sources from both intensively weathered crystalline rocks of the eastern margin of the Bohemian Massif (primary source) and the older sedimentary rocks -especially from the Moravo-Silesian Paleozoic deposits (recycled source).

show abstract

Section: Facies Associationmentioning

confidence: 99%

Depositional environment and provenance of the Gresten Formation (Middle Jurassic) on the southeastern slopes of the Bohemian Massif (Czech Republic, subsurface data)

Nehyba¹,

Opletal²

2016

AJES

View full text Add to dashboard Cite

show abstract

“…The structural maps of Barry & MacFarlan (1988) and unpublished maps by Coalcorp have been compiled from the interpretation of aerial photographs, field mapping, and from mine plans. Three series of faults are recognised and mapped by Barry & MacFarlan (1988) (Titheridge 1988). The reverse faults truncate normal faults (e.g., the Mt William Fault truncates the Kelly Fault), indicating that movement on these reverse faults is younger.…”

Section: Faultsmentioning

confidence: 99%

“…The geology of this area has been mapped at 1:250 000 scale by Bowen (1964) and has been the subject of structural studies by Cave (1983a, b, c), coal geology and structural mapping by Barry & MacFarlan (1988), and sedimentological studies by Titheridge (1988). There is good coverage of the Buller Coalfield by high quality aerial photographs, and these have been used to produce orthophotos of selected areas (Department of Lands & Survey 1984, from which faults and joints can be recognised and accurately measured (see below).…”

Section: Introductionmentioning

confidence: 99%

“…The cover sequence consists of the Brunner Coal Measures and the Kaiata Formation, both of Eocene age (Nathan et al 1986). The Brunner Coal Measures are a succession of terrestrial coal beds, lacustrine mudstones, and fluvial sandstones showing complex lateral and vertical variations (Titheridge 1988). The Kaiata Formation is a marine mudstone, only locally preserved, overlying the Brunner Coal Measures.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Neogene deformation in part of the Buller Coalfield, Westland, South Island, New Zealand

Bishop

1992

New Zealand Journal of Geology and Geophysics

View full text Add to dashboard Cite

The Buller Coalfield, Westland, is an area of Eocene coal measures and marine mudstones stretching along the western Papahaua Range, from the Buller River in the south to the Mokihinui River in the north. These deposits form a thin cover sequence on Paleozoic-Mesozoic basement rocks which have been uplifted during the Neogene. In the Stockton Plateau region, basement and cover have been shortened by folding and reverse movement on faults trending NNW-SSE to NE-S W, and sinistral movement on faults trending NW-SE to NNW-SSE. Subvertical joints of Neogene age in the Eocene coal measures form sets: extensional, shear, and hybrid types are identified. The regional shortening direction is derived from joint orientations to be WNW-ESE (285°), the same as that derived from a study of historic earthquakes. Comparison of the shortening direction (WNW-ESE) with fault orientations indicates that the faults and joints were not formed by the same strain. Faults were formed prior to the Neogene and have been reactivated by Neogene shortening, whereas joints formed owing to Neogene shortening.

show abstract

“…Coal deposits at Sullivan Mine are contained within the Brunner Coal Measures (BCM), which outcrop in uplifted blocks around the West Coast and Northern Westland area of New Zealand (Flores & Sykes 1996). The BCM are of Eocene age, are typically 30 to 100 m thick, and are composed of transgressive sandstonedominated sequences that also contain carbonaceous mudstones, conglomerates and shales (Titheridge 1992).…”

Section: Sullivan Minementioning

confidence: 99%

Results of small-scale passive system trials to treat acid mine drainage, West Coast Region, South Island, New Zealand

Trumm¹,

Watts²

2010

New Zealand Journal of Geology and Geophysics

View full text Add to dashboard Cite

Successful passive treatment of acid mine drainage can be improved through the use of small-scale pilot treatment systems to confirm appropriate system selection. Small-scale reducing and alkalinity producing systems were tested at two acid mine drainage sites in the West Coast Region, South Island, New Zealand: the Sullivan Mine and the Pike River Adit. A laboratory trial consisting of a limestone leaching column was conducted on the Blackball Mine acid mine drainage, West Coast Region. All three sites contain low pH (Sullivan Mine, 2.9; Pike River Adit, 3.2; Blackball Mine, 3.1), elevated Fe (Sullivan Mine, 47 mg/ L; Pike River Adit, 34 mg/L; Blackball Mine, 10.6 mg/L), elevated Al (Sullivan Mine, 14 mg/L; Pike River Adit, 1.6 mg/L; Blackball Mine, 14.1 mg/L) and minor concentrations of Mn (0.35Á0.51 mg/L), Ni (0.005Á0.13 mg/L) and Zn (0.14Á1.1 mg/L). The percentages of metals removed by the Sullivan Mine reducing and alkalinity producing system were: Fe (97%), Al (100%) and Ni (66%). The percentage metal removals at the Pike River Adit reducing and alkalinity producing system were: Fe (99%), Al (96%), Ni (95%) and Zn (99%). Percent metal removals for the Blackball Mine acid mine drainage were: Fe (87%), Al (91%), Mn (21%) and Zn (68%). Interpretation of data from these small-scale systems suggests that a reducing strategy may be successful at the Sullivan Mine and Pike River Adit and that an oxidising strategy may be appropriate for the Blackball Mine.

show abstract

The influence of half-graben syn-depositional tilting on thickness variation and seam splitting in the Brunner Coal Measures, New Zealand

Cited by 16 publications

References 9 publications

Depositional environment and provenance of the Gresten Formation (Middle Jurassic) on the southeastern slopes of the Bohemian Massif (Czech Republic, subsurface data)

Depositional environment and provenance of the Gresten Formation (Middle Jurassic) on the southeastern slopes of the Bohemian Massif (Czech Republic, subsurface data)

Neogene deformation in part of the Buller Coalfield, Westland, South Island, New Zealand

Results of small-scale passive system trials to treat acid mine drainage, West Coast Region, South Island, New Zealand

Contact Info

Product

Resources

About