R W Young
Biographic Data
| ID | 4525111 |
|---|---|
| NAME | R W Young |
| GIVEN NAMES | R W |
| FAMILY NAME | Young |
| SIGNATURE | YOUNG R W |
| AFFILIATIONS | University of Wollongong |
| VERIFIED | No |
| TOTAL WORKS | 23 |
| TOTAL CITATIONS | 25 |
| WORKS AS AUTHOR | 23 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 1970 |
| LATEST PUBLICATION YEAR | 2001 |
| H-INDEX | 3 |
Thermoluminescence Dating of Alluvial Sequences in Coastal Valleys of Southern New South Wales
Because of its potential for establishing chronologies far beyond the range of C14 thermoluminescence (TL) dating has made a significant contribution to the study of the Quaternary history of many Australian landscapes. But, as the reliability of the technique requires the removal by sunlight of any residual TL from quartz grains during transport, inadequate bleaching may yield ages for depositional events that are too old. Inadequate bleaching o…
George Dury 1916–96
G.H. Dury was one of the outstanding figures in postwar geography and geomorphology. Although known chiefly for his research into the impact of climatic change on streams, he made important contributions to the study of pediments, of deep‐weathering, and of climatic extremes and fluctuations. He also did innovative work in historical and regional geography, and contributed greatly to geographical education in both universities and high schools. D…
Character and Age of Lateritic Weathering at Jervis Bay, Southern New South Wales
Lateritic profiles near Jervis Bay developed under humid temperate climates on a surface of considerable relief. δ 18 O and TL dating of these profiles indicates that their ages range from Late Mesozoic‐Early Tertiary to Late Pleistocene. These profiles thus demonstrate a complexity of development far greater than that allowed for in traditional explanations which attributed lateritic weathering to the effects of tropical climates on Middle Terti…
Fluvial deposition on the Shoalhaven deltaic plain, Southern New South Wales
New research from the Shoalhaven deltaic plain prompts revision of ideas on fluvial deposition in coastal New South Wales. Extensive remnants of Pleistocene alluvium occur on the surface and beneath Holocene sediments. Thermoluminescence (TL) analysis indicates that there were at least two and probably four phases of Pleistocene deposition spanning much of Last Interglacial and Glacial times. Deposition continued even when sea levels were low. Ho…
Block gliding and rheological deformation in the Southern Sydney basin
Block gliding caused by low frictional resistance or by the deformation of plastic substrates has been well documented from many parts of the world, but neither of these mechanisms explains the widespread gliding of sandstone blocks away from cliffs in the southern Sydney Basin of south‐eastern Australia. The movement of large blocks over declivities from near zero to a maximum of 5°, high frictional resistance and lack of high porewater pressure…
A pleistocene origin for shore platforms along the Northern Illawarra Coast, New South Wales
This paper examines the composition, structure and age of clastic deposits situated behind shore platforms at Austinmer and Coledale on the northern Illawarra coast, New South Wales. Our results support earlier chronological evidence of a Pleistocene history for shore platforms along the Illawarra coast. The size and fabric of sediments within these deposits indicate rapid, high‐energy deposition of bedrock eroded from platforms adjacent to the d…
Last interglacial sea levels on the south coast of New South Wales
Remnants of the Last Interglacial shoreline occur at Middle Lagoon on the far south coast of New South Wales. Relict beach sediments can be traced to a height of at least +4.8 m and are indicative of a former mean sea level of about +3 m. Thermoluminescence (TL) ages of 126 ± 13 ka and 114 ± 15 ka were determined for beach and aeolian facies respectively. Sands in the lower part of an exposure on the adjacent Gillards Beach gave TL ages of 108 ± …
Thermoluminescenge and Uranium‐Thorium chronologies of pleistocene coastal landforms of the Illawarra region, New South Wales
TL determinations of the ages of aeolian sands and U/Th determinations of the ages of crusts on rock platforms in the Illawarra region, especially at Red Point, indicate that these techniques give considerable promise of a major advance in deciphering the Pleistocene coastal record in Australia. The methods of dating are outlined, and problems of laboratory and field interpretation are considered. The longstanding debate as to whether the +2 m le…
Altogether barren, peculiarly romantic’
The poor and rugged sandstone plateaux around Sydney were long seen as little more than a barrier to the fertile inland. Yet this wilderness has had a fascination for artists and sightseers alike. Economic impacts came slowly, while action to preserve the landscape met with considerable success, but over the last decade there has been increasing conflict between developers and conservationists. A geomorpho‐logical account of the sandstones is pre…
Environment and development in Australia
Comparison of Thermoluminescence and Radiocarbon Age-Determinations from Late-Pleistocene Alluvial Deposits Near Sydney, Australia
Radiocarbon and thermoluminescence (TL) age-determinations have been obtained for a large Pleistocene alluvial terrace on the Nepean River near Sydney, New South Wales, Australia. The deposit was laid down by a braided river system prior to the last glacial maximum. Six thoroughly pretreated samples of charcoal and degraded wood buried within gravels at the base of the terrace yielded apparent 14 C ages of ∼37,000–42,000 yr B.P. These compare fav…
Sandstone terrain in a semi‐arid littoral environment
Stream and wave erosion have cut spectacular cliffs in the Tumblagooda Sandstone in the Murchison gorge and along the adjacent coast. The sandplain above the cliffs developed between the Late Cretaceous and the Mid Tertiary but whether it formed at low level and was then uplifted or was formed at its present elevation is not known. The upper 30 km of the gorge post‐dates the laterite on the sandplain. As there is little runoff from the sandplain,…
A national conservation strategy for Australia
Landform studies—mainly coastal
Terrace formation in the Illawarra region of New South Wales
The formation of river terraces is generally attributed to fluctuations in climate, sea level or tectonic activity. In this study we argue that they can form when critical thresholds intrinsic to an alluvial system are exceeded. This conclusion is drawn from a comparative study of ancient terrace deposits and modern floodplains, rather than from an attempt to fit terrace sequences into a climatic chronology. While climatic change cannot be ignore…
Denudational history of the south‐central uplands of New South Wales
K‐Ar age determinations on Tertiary basalts provide the basis of a new chronology for part of the south‐central uplands of N.S.W. A master planation surface which truncates a very diverse lithology was formed before Tertiary times, probably during the Triassic. There is evidence neither of the early Tertiary nor mid‐Tertiary planations which figured so prominently in many accounts of the N.S.W. uplands. By the beginning of Miocene times the Lachl…
Commentary on 'Evolutionary Geomorphology of Australia and Papua-New Guinea
In his 'Evolutionary Geomorphology of Australia and Papua-New Guinea' Oilier (1979) draws bold, indeed some might say stunning, conclusions. However, the case for several of these conclusions is very weak. For example, the occurrence of Oligocene basalt at 650 m in the Aberfeldy area (Ollier's Figure 9) is obviously far from sufficient evidence to conclude that 'there has been a further uplift of about 6oo m since the Oligocene flow'. The elevati…
Paradigms in geography
The study of landform evolution in the Sydney region
Since the triumph of the fluvialist school, and especially since the introduction of the cyclic model of landform evolution at the turn of this century, geomorphological research in the Sydney region has been pictured as an essentially orderly progression based on the rigorous testing of hypotheses against field evidence. But with the passage of time the tenuous nature of the foundations on which the edifice was built was largely forgotten; what …
Geological and hydrological influences on the development of meandering valleys in the Shoalhaven River catchment, southeastern New South Wales
Depositional evidence for higher sea levels; critique and reply
Shore platform cut in latite
Shore platform cut in latite: Cathedral Rocks, Kiama N.S.W.." Australian Geographer, 12(1), pp. 49–50
The patterns of some meandering valleys in New South Wales
(1970). The patterns of some meandering valleys in New South Wales. Australian Geographer: Vol. 11, No. 3, pp. 269-277
Thermoluminescenge and Uranium‐Thorium chronologies of pleistocene coastal landforms of the Illawarra region, New South Wales
TL determinations of the ages of aeolian sands and U/Th determinations of the ages of crusts on rock platforms in the Illawarra region, especially at Red Point, indicate that these techniques give considerable promise of a major advance in deciphering the Pleistocene coastal record in Australia. The methods of dating are outlined, and problems of laboratory and field interpretation are considered. The longstanding debate as to whether the +2 m le…
Terrace formation in the Illawarra region of New South Wales
The formation of river terraces is generally attributed to fluctuations in climate, sea level or tectonic activity. In this study we argue that they can form when critical thresholds intrinsic to an alluvial system are exceeded. This conclusion is drawn from a comparative study of ancient terrace deposits and modern floodplains, rather than from an attempt to fit terrace sequences into a climatic chronology. While climatic change cannot be ignore…
Denudational history of the south‐central uplands of New South Wales
K‐Ar age determinations on Tertiary basalts provide the basis of a new chronology for part of the south‐central uplands of N.S.W. A master planation surface which truncates a very diverse lithology was formed before Tertiary times, probably during the Triassic. There is evidence neither of the early Tertiary nor mid‐Tertiary planations which figured so prominently in many accounts of the N.S.W. uplands. By the beginning of Miocene times the Lachl…
Altogether barren, peculiarly romantic’
The poor and rugged sandstone plateaux around Sydney were long seen as little more than a barrier to the fertile inland. Yet this wilderness has had a fascination for artists and sightseers alike. Economic impacts came slowly, while action to preserve the landscape met with considerable success, but over the last decade there has been increasing conflict between developers and conservationists. A geomorpho‐logical account of the sandstones is pre…
Character and Age of Lateritic Weathering at Jervis Bay, Southern New South Wales
Lateritic profiles near Jervis Bay developed under humid temperate climates on a surface of considerable relief. δ 18 O and TL dating of these profiles indicates that their ages range from Late Mesozoic‐Early Tertiary to Late Pleistocene. These profiles thus demonstrate a complexity of development far greater than that allowed for in traditional explanations which attributed lateritic weathering to the effects of tropical climates on Middle Terti…
Fluvial deposition on the Shoalhaven deltaic plain, Southern New South Wales
New research from the Shoalhaven deltaic plain prompts revision of ideas on fluvial deposition in coastal New South Wales. Extensive remnants of Pleistocene alluvium occur on the surface and beneath Holocene sediments. Thermoluminescence (TL) analysis indicates that there were at least two and probably four phases of Pleistocene deposition spanning much of Last Interglacial and Glacial times. Deposition continued even when sea levels were low. Ho…
Last interglacial sea levels on the south coast of New South Wales
Remnants of the Last Interglacial shoreline occur at Middle Lagoon on the far south coast of New South Wales. Relict beach sediments can be traced to a height of at least +4.8 m and are indicative of a former mean sea level of about +3 m. Thermoluminescence (TL) ages of 126 ± 13 ka and 114 ± 15 ka were determined for beach and aeolian facies respectively. Sands in the lower part of an exposure on the adjacent Gillards Beach gave TL ages of 108 ± …
Environment and development in Australia
Commentary on 'Evolutionary Geomorphology of Australia and Papua-New Guinea
In his 'Evolutionary Geomorphology of Australia and Papua-New Guinea' Oilier (1979) draws bold, indeed some might say stunning, conclusions. However, the case for several of these conclusions is very weak. For example, the occurrence of Oligocene basalt at 650 m in the Aberfeldy area (Ollier's Figure 9) is obviously far from sufficient evidence to conclude that 'there has been a further uplift of about 6oo m since the Oligocene flow'. The elevati…
The patterns of some meandering valleys in New South Wales
(1970). The patterns of some meandering valleys in New South Wales. Australian Geographer: Vol. 11, No. 3, pp. 269-277
Shore platform cut in latite
Shore platform cut in latite: Cathedral Rocks, Kiama N.S.W.." Australian Geographer, 12(1), pp. 49–50
Depositional evidence for higher sea levels; critique and reply
The study of landform evolution in the Sydney region
Since the triumph of the fluvialist school, and especially since the introduction of the cyclic model of landform evolution at the turn of this century, geomorphological research in the Sydney region has been pictured as an essentially orderly progression based on the rigorous testing of hypotheses against field evidence. But with the passage of time the tenuous nature of the foundations on which the edifice was built was largely forgotten; what …
Geological and hydrological influences on the development of meandering valleys in the Shoalhaven River catchment, southeastern New South Wales
Paradigms in geography
Commentary on 'Evolutionary Geomorphology of Australia and Papua-New Guinea
In his 'Evolutionary Geomorphology of Australia and Papua-New Guinea' Oilier (1979) draws bold, indeed some might say stunning, conclusions. However, the case for several of these conclusions is very weak. For example, the occurrence of Oligocene basalt at 650 m in the Aberfeldy area (Ollier's Figure 9) is obviously far from sufficient evidence to conclude that 'there has been a further uplift of about 6oo m since the Oligocene flow'. The elevati…
Denudational history of the south‐central uplands of New South Wales
K‐Ar age determinations on Tertiary basalts provide the basis of a new chronology for part of the south‐central uplands of N.S.W. A master planation surface which truncates a very diverse lithology was formed before Tertiary times, probably during the Triassic. There is evidence neither of the early Tertiary nor mid‐Tertiary planations which figured so prominently in many accounts of the N.S.W. uplands. By the beginning of Miocene times the Lachl…
Terrace formation in the Illawarra region of New South Wales
The formation of river terraces is generally attributed to fluctuations in climate, sea level or tectonic activity. In this study we argue that they can form when critical thresholds intrinsic to an alluvial system are exceeded. This conclusion is drawn from a comparative study of ancient terrace deposits and modern floodplains, rather than from an attempt to fit terrace sequences into a climatic chronology. While climatic change cannot be ignore…
Landform studies—mainly coastal
A national conservation strategy for Australia
Sandstone terrain in a semi‐arid littoral environment
Stream and wave erosion have cut spectacular cliffs in the Tumblagooda Sandstone in the Murchison gorge and along the adjacent coast. The sandplain above the cliffs developed between the Late Cretaceous and the Mid Tertiary but whether it formed at low level and was then uplifted or was formed at its present elevation is not known. The upper 30 km of the gorge post‐dates the laterite on the sandplain. As there is little runoff from the sandplain,…
Comparison of Thermoluminescence and Radiocarbon Age-Determinations from Late-Pleistocene Alluvial Deposits Near Sydney, Australia
Radiocarbon and thermoluminescence (TL) age-determinations have been obtained for a large Pleistocene alluvial terrace on the Nepean River near Sydney, New South Wales, Australia. The deposit was laid down by a braided river system prior to the last glacial maximum. Six thoroughly pretreated samples of charcoal and degraded wood buried within gravels at the base of the terrace yielded apparent 14 C ages of ∼37,000–42,000 yr B.P. These compare fav…
Altogether barren, peculiarly romantic’
The poor and rugged sandstone plateaux around Sydney were long seen as little more than a barrier to the fertile inland. Yet this wilderness has had a fascination for artists and sightseers alike. Economic impacts came slowly, while action to preserve the landscape met with considerable success, but over the last decade there has been increasing conflict between developers and conservationists. A geomorpho‐logical account of the sandstones is pre…
Environment and development in Australia
Thermoluminescenge and Uranium‐Thorium chronologies of pleistocene coastal landforms of the Illawarra region, New South Wales
TL determinations of the ages of aeolian sands and U/Th determinations of the ages of crusts on rock platforms in the Illawarra region, especially at Red Point, indicate that these techniques give considerable promise of a major advance in deciphering the Pleistocene coastal record in Australia. The methods of dating are outlined, and problems of laboratory and field interpretation are considered. The longstanding debate as to whether the +2 m le…
Last interglacial sea levels on the south coast of New South Wales
Remnants of the Last Interglacial shoreline occur at Middle Lagoon on the far south coast of New South Wales. Relict beach sediments can be traced to a height of at least +4.8 m and are indicative of a former mean sea level of about +3 m. Thermoluminescence (TL) ages of 126 ± 13 ka and 114 ± 15 ka were determined for beach and aeolian facies respectively. Sands in the lower part of an exposure on the adjacent Gillards Beach gave TL ages of 108 ± …
A pleistocene origin for shore platforms along the Northern Illawarra Coast, New South Wales
This paper examines the composition, structure and age of clastic deposits situated behind shore platforms at Austinmer and Coledale on the northern Illawarra coast, New South Wales. Our results support earlier chronological evidence of a Pleistocene history for shore platforms along the Illawarra coast. The size and fabric of sediments within these deposits indicate rapid, high‐energy deposition of bedrock eroded from platforms adjacent to the d…
Block gliding and rheological deformation in the Southern Sydney basin
Block gliding caused by low frictional resistance or by the deformation of plastic substrates has been well documented from many parts of the world, but neither of these mechanisms explains the widespread gliding of sandstone blocks away from cliffs in the southern Sydney Basin of south‐eastern Australia. The movement of large blocks over declivities from near zero to a maximum of 5°, high frictional resistance and lack of high porewater pressure…
Character and Age of Lateritic Weathering at Jervis Bay, Southern New South Wales
Lateritic profiles near Jervis Bay developed under humid temperate climates on a surface of considerable relief. δ 18 O and TL dating of these profiles indicates that their ages range from Late Mesozoic‐Early Tertiary to Late Pleistocene. These profiles thus demonstrate a complexity of development far greater than that allowed for in traditional explanations which attributed lateritic weathering to the effects of tropical climates on Middle Terti…
Fluvial deposition on the Shoalhaven deltaic plain, Southern New South Wales
New research from the Shoalhaven deltaic plain prompts revision of ideas on fluvial deposition in coastal New South Wales. Extensive remnants of Pleistocene alluvium occur on the surface and beneath Holocene sediments. Thermoluminescence (TL) analysis indicates that there were at least two and probably four phases of Pleistocene deposition spanning much of Last Interglacial and Glacial times. Deposition continued even when sea levels were low. Ho…
George Dury 1916–96
G.H. Dury was one of the outstanding figures in postwar geography and geomorphology. Although known chiefly for his research into the impact of climatic change on streams, he made important contributions to the study of pediments, of deep‐weathering, and of climatic extremes and fluctuations. He also did innovative work in historical and regional geography, and contributed greatly to geographical education in both universities and high schools. D…
Thermoluminescence Dating of Alluvial Sequences in Coastal Valleys of Southern New South Wales
Because of its potential for establishing chronologies far beyond the range of C14 thermoluminescence (TL) dating has made a significant contribution to the study of the Quaternary history of many Australian landscapes. But, as the reliability of the technique requires the removal by sunlight of any residual TL from quartz grains during transport, inadequate bleaching may yield ages for depositional events that are too old. Inadequate bleaching o…
Geography (17 works) · Geology (17 works) · Geology (16 works) · Geology and Paleoclimatology Research (15 works) · Paleontology (12 works) · Paleontology (11 works) · Geological formations and processes (10 works) · Archaeology (8 works) · Oceanography (8 works) · Oceanography (8 works)