Adrian J. Hartley

Adrian J. Hartley
University of Aberdeen | ABDN · Department of Geology and Petroleum Geology

About

241
Publications
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6,134
Citations
Additional affiliations
October 1991 - present
University of Aberdeen
Position
  • Professor (Full)

Publications

Publications (241)
Article
The advent of photorealistic, 3D computer models of cliff sections (virtual outcrops) has improved the immersive nature of virtual geological field trips. As the COVID-19 pandemic led to widespread national and international travel restrictions, virtual field trips (VFTs) became practical and essential substitutes for traditional field trips and ac...
Article
Full-text available
Over the last decade, there has been a resurgence of interest in the climatic and tectonic mechanisms that drove the Messinian salinity crisis (MSC) and the associated deposition of thick evaporites. The MSC represents an unprecedented palaeoceanographic change that led to a very short (c. 640 kyr) ecological and environmental crisis. However, acro...
Article
Reconstructing the paleohydraulics of ancient fluvial systems has important implications when determining channel-body dimensions in the subsurface as well as aiding source-to-sink studies and quantitatively determining the impact of changing climatic conditions. We undertake a paleohydraulic analysis of the Upper Jurassic Salt Wash distributive fl...
Article
The analysis of downstream changes in ancient fluvial systems can better inform depositional models for foreland-basin systems. Herein we analyze the basal deposits of the Early Cretaceous Cedar Mountain Formation of Utah to better understand the variety of fluvial deposits present and to develop a depositional model for the Sevier foreland basin....
Article
The Triassic sediments of the Central North Sea (CNS) are considered to have been deposited in a continental environment under a semi-arid climate. The Skagerrak Formation in particular, comprises an alternation of sandstone and mudstone members, the development of which is considered to be climatically driven. However, conflicting models exist as...
Preprint
Full-text available
Virtual geological fieldtrips have become increasingly popular over the last decade, with the advent of remote piloted vehicles (RPVs; drones) leading to progressively sophisticated photorealistic virtual outcrops (VOs). As the COVID-19 pandemic led to widespread international travel restrictions, virtual fieldtrips (VFTs) became practical, and nec...
Conference Paper
Over the last decade, there has been a resurgence of interest in the climatic and tectonic mechanisms that drove the Messinian salinity crisis (MSC) and the associated deposition of thick evaporites. The MSC represents an unprecedented palaeoceanographic change that led to a very short (c. 640 kyr) ecological and environmental crisis. However, acro...
Article
To better understand the stratigraphic development of sedimentary systems it is necessary to link the controls on sedimentary processes to the resulting deposits which in turn allows predictions of stratigraphic architectures at a range of scales. We utilize a stratigraphic forward model to link the governing parameters to the distribution of depos...
Article
The Sea of Hebrides Basin and Minch Basin are late Palaeozoic-Mesozoic rift basins located to the northwest of the Scottish mainland. The basins were the target of small-scale petroleum exploration from the late 1960s to the early 1990s, with a total of three wells drilled within the two basins between 1989 and 1991. Although no commercially viable...
Conference Paper
Full-text available
The role of the Nahr Menashe in the Messinian Salinity Crisis: formation, dissolution and fluvial incision of the top evaporite unit in the NE Levant Basin, Eastern Mediterranean The Nahr Menashe Unit (NMU), which forms the uppermost part of the Messinian succession, is one of the most cryptic and elusive sedimentary units present in the Levant ba...
Article
The Lower Cretaceous Botucatu Formation comprises a dry-aeolian system developed in western Gondwana and preserved within the Paraná Basin of central South America. Multiproxy provenance analysis (detrital zircon U-Pb dating, heavy mineral, petrographic and granulometric analysis) was undertaken along two 500 km transects of the northern Paraná Bas...
Article
We welcome the constructive comments of Manning et al. (2021) that our paper on the Palaeogeographical Evolution of the Rattray Volcanic Province (RVP) provides a very valuable synthesis of this suite of rocks. Our paper presented a new evaluation of the stratigraphy and palaeogeographical setting of the RVP before, during and after the eruptions....
Article
Full-text available
Quantifying sedimentary deposits is crucial to fully test generic trends cited within facies models. To date, few studies have quantified downstream trends alongside vertical and lateral variations within distributive fluvial systems (DFS), with most studies reporting qualitative trends. This study reports on the generation of a quantitative datase...
Article
Full-text available
An analysis of the sedimentary fill of a foreland basin can provide information on the relative effect of tectonics, base‐level fluctuations and climate during basin development. This study analyzes fluvial strata from the upper Cedar Mountain and Naturita formations of the mid‐Cretaceous foreland basin of Utah (USA) to determine the effects of spa...
Article
The Little Minch Sill Complex is comprised of a series of stacked, multi-leaved Paleocene aged dolerite sills, which have been primarily intruded into Mesozoic sedimentary rocks and Paleocene tuffs/?hyaloclastites within the Sea of Hebrides Basin, situated on the NE Atlantic margin. Two previously proposed models for the emplacement of the sill com...
Article
Full-text available
An analysis of the petrophysical and diagenetic effects of the emplacement of Cretaceous basaltic lava flows (Serra Geral Formation) on aeolian sandstones (Botucatu Formation) has been undertaken on core samples from the Paraná Basin, Brazil. Between 0.1 to 1 m from the contact zone, acoustic wave velocities and porosities in sandstones show a sign...
Article
Reconstructing regional geological histories is challenging where basins have limited and/or fragmentary preservation. Several isolated outlier basins of Lower Old Red Sandstone (LORS) occur on the Scottish Grampian terrane; however, their sedimentology and relationship to other similar-aged LORS deposits has been poorly constrained, as has their s...
Article
These are commonly interlinked and the relative importance of each can be difficult to unravel. These variables include geological parameters such as depositional environment which has long been considered a key factor influencing the production characteristics of fields. However, quantifying the importance of any single factor, such as depositiona...
Article
Volcanism in large igneous provinces (LIPs) is understood to have had the potential to affect global environments and ecosystems, triggering mass extinctions, climate change, and ocean acidification. However, basin-scale studies sediment distribution and sedimentary-system development in LIP lava fields are sparse and often limited to localized exp...
Article
Thin tidal estuarine deposits of the Naturita Formation (0–23 m) of the San Rafael Swell record the initial flooding of the Cretaceous Western Interior Seaway, Utah, and capture the transition from inland fluvial systems to fully marine conditions over a time period of 5 My or less. A tide-dominated estuarine environment is favored due to the combi...
Article
Full-text available
Reconstruction of the geological history of orogenic events can be challenging where basins have limited and/or fragmentary preservation. Here we apply understanding gained from modern analogues to the sedimentological analysis of the succession of Upper Silurian to Lower Devonian Lower Old Red Sandstone (LORS), northern Midland Valley, Scotland, i...
Article
Historically, the continental Triassic successions of the Central North Sea have proven difficult to correlate, in part due to the poor palynomorph recovery associated with these sedimentary rocks. The existing framework for correlation is lithostratigraphic and, whilst this has proven effective in United Kingdom Continental Shelf (UKCS) Quad 30 wh...
Article
Full-text available
As turbidity currents are sensitive to the geometry of the substrate across which they flow, the sedimentology of turbidites can chart the development of submarine structures and reveal regional palaeobathymetric connections. This rationale is applied to understand the tectonic evolution of the central Mediterranean in the early Miocene, using the...
Article
Geomorphic archives, particularly longitudinal river profiles, are increasingly used as a proxy to reconstruct uplift rates in mountainous regions. Within the Atacama Desert, Northern Chile, slow, long-term erosion creates exceptional preservation of fluvial and alluvial surfaces. This enables river incision patterns to be used on a continental-sca...
Article
The Lower Cretaceous Botucatu Formation records the development of widespread dry–aeolian desert sedimentation throughout the Paraná Basin in south‐west Gondwana. To reconstruct the provenance of the aeolian sediment, petrography, granulometric analysis, U‐Pb detrital zircon ages have been determined from along the southern basin margin in Rio Gran...
Article
A dropstone horizon is described from lake deposits in a palaeo-valley from the c. 1000 Ma Diabaig Formation, Torridon Group, NW Scotland. Dropstones occur in wave-rippled, fine-grained sandstones and siltstones that contain desiccation and syneresis cracks indicative of fluctuating lake levels. Five locally derived dropstones occur at the same hor...
Poster
The categorized seismic facies indicate a strong lateral variation in the internal character of Unit 7. We interpret this to represent layered units of anhydrite and pelitic sediments (Mud), brecciated karst surfaces of salt or limestone. These observations supports the hypothesis of a complex erosive and depositional environment. Overlying sedimen...
Article
Full-text available
Sediment provenance analysis is important in reconstructing chronological and spatial relationships between source area erosion/exhumation and sediment deposition in adjacent basins. Here we provide new provenance data from conglomerate clast populations, sandstone petrography, heavy mineral assemblages and U-Pb detrital zircon geochronology from t...
Article
ABSTRACT The influence of biotic processes in controlling the development of meandering channels in fluvial systems is controversial. The majority of the depositional history of the Earth’s continents was devoid of significant biogeomorphic interactions, particularly those between vegetation and sedimentation processes. The prevailing perspective...
Article
Full-text available
This Special Publication contains contributions for two meetings held to explore the links between geoscience and engineering in rivers and reservoirs (surface and subsurface). The first meeting was held in Brazil and, as a result, the volume contains many contributions from Brazil. The second was held in Edinburgh, and produced contributions from...
Preprint
A core component of the sequence stratigraphic model is the implicit assumption of a semi-sinusoidal relative sea-level curve, and the occurrence of “sequence boundaries” formed during intervals of sea-level fall, recognized primarily by the presence of incised valleys. Late Cretaceous paralic deposits in the Book Cliffs, Utah, have been one of the...
Article
The Middle Jurassic Rattray Volcanic Province is located at the triple junction of the North Sea continental rift system. It has previously been thought to be sourced from three large central volcanoes: the Glenn, Fisher Bank and Ivanhoe volcanic centres. Re-interpretation using 3D seismic and well data shows that no volcanic centres are present an...
Chapter
Full-text available
Amalgamated sandy meander belts and their deposits are common in modern continental and marine‐connected basins yet comprise a minor constituent of the reported fluvial rock record. This suggests that either amalgamated meander‐belts are uncommon in the rock record or that the recognition criteria are lacking to identify sandy meandering river depo...
Chapter
Full-text available
The Salt Wash distributive fluvial system (DFS) of the Upper Jurassic Morrison Formation consists of stacked fluvial channel bodies interbedded with overbank deposits. The Salt Wash DFS has previously been recognised as a braided fluvial fan covering an area of over 100,000 km². However, the addition of high‐resolution satellite imagery means planf...
Article
Basin scale models are required to interpret ancient continental sedimentary successions, and reduce uncertainty in assessing geological resources in basins. Recently, modern studies show distributive fluvial systems to comprise a substantial proportion of modern sedimentary basins, but their role in ancient basin fills has yet to be quantitatively...
Article
Full-text available
Sedimentary basins affected by hotspots often contain records of uplift and subsidence within coeval stratigraphic successions. The subsidence history can contain measurable perturbations in ancient palaeogeographies that can help constrain the duration of dynamic support. At c. 56 Ma the NE Atlantic experienced uplift related to the Iceland mantle...
Article
The NE Atlantic margin is one of the last frontier areas of hydrocarbon exploration within the UK Continental Shelf. In 2004, a major oil and gas discovery (Rosebank) was made within Paleocene–Eocene-age lavas in the Faroe–Shetland Basin. The Rosebank Field consists of intra-basaltic terrestrial to marginal-marine reservoir sequences, separated by...
Poster
Full-text available
The Dakota Sandstone/Naturita Formation (D/N) of the San Rafael Swell (SRS), Utah contains extensive tidal deposits that, in part, record the initial transgression of the Cretaceous Western Interior Seaway (WIS). On the San Rafael Swell, there are comparatively few studies dedicated to this formation. The focus of this poster is to introduce data a...
Article
Full-text available
Understanding ancient deep-water sedimentary systems that accumulated at complex plate boundaries requires confronting the stratigraphic record of deformed sedimentary successions by tracking sand-fairways and identifying original relationships in later deformed sequences. Here, we investigate the Numidian turbidite system (early to mid-Miocene) of...
Article
Aeolian science is faced with significant challenges that impact its ability to benefit from recent advances in information technology. The discipline deals with high-end systems in the form of ground and satellite based sensors, computer modeling and simulation, and wind tunnel experiments. Aeolian scientists also collect field data manually with...
Conference Paper
The 9 km thick Lower Old Red Sandstone (LORS) succession of the northern part of the Midland Valley Basin (MVB), Scotland, ranges from Wenlock to Emsian in age and largely comprises conglomerates in the east passing westwards into sandstones and siltstones. This study focuses on fluvial conglomerates and sandstones of the LORS that crop out in the...
Article
Determining the response of fluvial systems to syn-sedimentary halokinesis is important for reconstructing the palaeogeography of salt basins, determining the history of salt movement and predicting development and architecture of sandstone bodies for subsurface fluid extraction. To assess both the influence of salt movement on fluvial system devel...
Article
The Atacama Desert on the western margin of the Central Andes is one of the driest and oldest deserts in the world. It is defined by a distinct and ancient surface, known as the Pacific Paleosurface (PPS) or Atacama Paleosurface. The age of this surface is determined as the time at which sediment deposition ceased, and the surface was effectively a...
Article
The UK Rockall Basin is one of the most underexplored areas of the UK Continental Shelf (UKCS) with only 12 exploration wells drilled since 1980. With only one discovery made in 2000 (Benbecula (154/1-1) Gas discovery), the general view of the basin from an exploration viewpoint is not positive. However, over the last 15 years, our knowledge of the...
Article
Fluvial channel geometry classification schemes are commonly restricted in relation to the scale at which the study took place, often due to outcrop limitations or need to conduct small-scale detailed studies. A number of classification schemes are present in the literature; however there is often limited consistency between them, making applicatio...
Conference Paper
The 9 km thick Lower Old Red Sandstone (LORS) succession of the northern part of the Midland Valley Basin (MVB), Scotland, ranges from Wenlock to Emsian in age and largely comprises conglomerates in the east passing westwards into sandstones and siltstones. This study focuses on fluvial conglomerates and sandstones of the LORS that crop out in the...
Article
Full-text available
The majority of sediment transport to the world’s oceans is routed via large deltas. We examine controls on delta apex location using a database of 84 of the world’s largest deltas. Of the dataset, 94% of apices are controlled by either bedrock valleys (80%) or Pleistocene alluvial valleys (14%), suggesting that the principal control on modern apex...
Conference Paper
The 9 km thick Lower Old Red Sandstone (LORS) succession of the northern part of the Midland Valley Basin ranges from Wenlock to Emsian age and comprises largely of conglomerates in the east, passing westwards into sandstones and siltstones. Predominantly of fluvial and alluvial origin, these facies accumulated across the Strathmore basin, with ass...
Article
Full-text available
Understanding whether a system was unconfined, and deposited on a relatively unstructured basin-floor, or was confined by actively deforming substrate is important for the prediction of turbidite stratigraphy. Here we consider the Numidian turbidite system (Oligocene-Miocene) of Sicily - for many the type example of thick structureless submarine sa...
Conference Paper
The 9 km thick Lower Old Red Sandstone (LORS) succession of the northern part of the Midland Valley Basin ranges from Wenlock to Emsian age and comprises largely of conglomerates in the east, passing westwards into sandstones and siltstones. Predominantly of fluvial and alluvial origin, these facies accumulated across the Strathmore basin, with ass...
Article
Understanding rift topography is essential for determining source areas, sediment pathways, and the type of sediment delivered to a rift basin; factors essential for interpreting petroleum systems in ancient rifts. Here we investigate Upper Jurassic sediments from the Josephine Ridge region of the Central Graben, North Sea, by integrating geophysic...
Conference Paper
The 9 km thick Lower Old Red Sandstone (LORS) succession of the northern part of the Midland Valley Basin ranges from Wenlock to Emsian age and comprises largely of conglomerates in the east, passing westwards into sandstones and siltstones. Predominantly of fluvial and alluvial origin, these facies accumulated across the Strathmore basin, with ass...
Article
The Triassic Fundy rift basin in Nova Scotia is a large (.70 km wide) half-graben filled with alluvial, lacustrine and aeolian deposits. A major lithospheric lineament, the Cobequid- Chedabucto Fault Zone (CCFZ), which forms the tip of the Newfoundland-Gibraltar Fault Zone, occurs within the Fundy Basin. The timing of early movement on this importa...
Conference Paper
Ternary plots are used in a number of disciplines. Known also as ternary graphs, triangle plots, Gibbs triangles, simplex plots or de Finetti diagrams, the plots allow the graphical depiction in space of the ratio of three given variables. Typically used in petrology, mineralogy, metallurgy, genetics and physical chemistry, it is used to display th...
Article
The extension-driven break-up of the Pangean Supercontinent in the present-day Central and North Atlantic domains commenced during Permo-Triassic times. Permian rift processes in this region are generally attributed to crustal collapse during the latter part of the Hercynian/Variscan orogeny, but the Triassic rifting style is more complex and the p...
Article
We infer system-scale fluid flow in the Late Jurassic Salt Wash fluvial succession (SW USA) by plotting uranium deposit distribution against sedimentological data, using uranium distribution as a proxy for subsurface fluid flow. More than 90% of uranium deposits in the Salt Wash occur where sandstone forms 40–55% and sand-rich channel-belts form 20...
Article
Full-text available
Detailed sedimentological examination of onshore sections through cyclic lacustrine deposits of the Middle Devonian succession of northern Scotland has been augmented with offshore data to allow the construction of a continuous 2.3 myr record of orbital forcing. These data provide an important record of climatic variance through the Devonian, which...
Conference Paper
Geomorphic studies of Aeolian features have traditionally focused on single or small collections of examples over limited regions due to the large scale of objects, their extensive spatial distribution, and difficulty in visiting and monitoring multiple research sites. Because of these constraints, comprehensive analysis of a statistically robust n...
Conference Paper
Aeolian science is faced with significant challenges that impact its ability to benefit from recent advances in information technology. As a discipline we deal with high-end systems in the form of ground and satellite based sensors, computer modeling and simulation and wind tunnel experiments. We also collect field data manually with observational...
Conference Paper
The relationship between the Highland Boundary Fault (HBF) and Lower Old Red Sandstone (LORS) deposition remains controversial. The 9km thick LORS succession of the northern margin of the Midland Valley Basin (MVB) ranges from Wenlock to Emsian in age and is heavily dominated by conglomerates in the east, passing westwards into sandstones and silts...