Chapter 6: Geological evidence analysis

2021 ◽  
pp. 129-155
Author(s):  
Alastair Ruffell ◽  
Duncan Pirrie ◽  
Lorna Dawson
Keyword(s):  
Geological Evidence ◽  
Evidence Analysis

Early human relations set the foundation for adult health and working life

2018 ◽  
Author(s):  
Alan Sinclair ◽  
Tam Baillie
Keyword(s):  
Well Being ◽  
Early Years ◽  
Adult Health ◽  
Human Relations ◽  
Rights Of The Child ◽  
Parents And Children ◽  
Evidence Analysis ◽  
Before School ◽  
Child Health Research ◽  
Early Human

Investing in early years is close to magic, without being magic. The United Nations has given greater prominence to the early years through a General Comment on the Convention on the Rights of the Child. Health research is gravitating to a view that adult physical and mental conditions have their origins in the womb and the earliest months and years of life. More than any other skills, employers want people who can talk, listen, and work with others: attributes that are largely picked up before school. Economists have demonstrated that the best return on investment in ‘education’ is in supporting parents and children, in the years before school. While evidence, analysis, and experience, which we review, points in one direction, it leads to three questions. Where are we now in child well-being and supporting parents and their very young children? Why are we not doing better? What can be done?

Data Echoes: Sound, Evidence, and Acoustic Methods in Energy Landscapes

2021 ◽  
pp. 016224392110345
Author(s):  
James Maguire
Keyword(s):  
Geothermal Energy ◽  
Energy Production ◽  
Model Building ◽  
Acoustic Method ◽  
Time Frame ◽  
Energy Landscapes ◽  
Geological Evidence ◽  
Temporal Form ◽  
Acoustic Methods ◽  
Intractable Problem

This paper explores an informal acoustic method developed by a group of industrial geologists working in geothermal energy landscapes in the southwest of Iceland. Through a series of ethnographic descriptions, this paper renders the work these geologists carry out in sonic terms, emphasizing how they use their bodies as sonic detectors in the production of geological evidence. Sound, the paper argues, is what allows geologists to make the intractable problem of volcanic cooling doable. It does this by differentiating two forms of evidence. Primary evidence, which ends up as data in geological reports, and secondary sonic evidence, which is what establishes that this primary evidence is, in fact, evidence. The paper introduces the concept data echoes as a way to think about how sound articulates between these evidential protocols. As echo, sound works as an outside, which, while remaining external to official protocols of knowledge production, nevertheless helps to constitute distinctions that are meaningful to the production of those categories. As data echoes through the various moments of data capture, analysis, and model building, sound’s temporal form helps to predict the time frame of volcanic cooling, as it affects both the immediate energy production scenarios and the long durée of volcanic time.

scholarly journals Surface-Rupturing Historical Earthquakes in Australia and Their Environmental Effects: New Insights from Re-Analyses of Observational Data

Geosciences ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 408 ◽  
Author(s):  
King ◽  
Quigley ◽  
Clark
Keyword(s):  
Observational Data ◽  
Environmental Effects ◽  
Active Faults ◽  
Magnetic Data ◽  
Future Research ◽  
Surface Rupture ◽  
Secondary Fracture ◽  
Geological Evidence ◽  
Surface Ruptures ◽  
Strong Control

We digitize surface rupture maps and compile observational data from 67 publications on ten of eleven historical, surface-rupturing earthquakes in Australia in order to analyze the prevailing characteristics of surface ruptures and other environmental effects in this crystalline basement-dominated intraplate environment. The studied earthquakes occurred between 1968 and 2018, and range in moment magnitude (Mw) from 4.7 to 6.6. All earthquakes involved co-seismic reverse faulting (with varying amounts of strike-slip) on single or multiple (1–6) discrete faults of ≥ 1 km length that are distinguished by orientation and kinematic criteria. Nine of ten earthquakes have surface-rupturing fault orientations that align with prevailing linear anomalies in geophysical (gravity and magnetic) data and bedrock structure (foliations and/or quartz veins and/or intrusive boundaries and/or pre-existing faults), indicating strong control of inherited crustal structure on contemporary faulting. Rupture kinematics are consistent with horizontal shortening driven by regional trajectories of horizontal compressive stress. The lack of precision in seismological data prohibits the assessment of whether surface ruptures project to hypocentral locations via contiguous, planar principal slip zones or whether rupture segmentation occurs between seismogenic depths and the surface. Rupture centroids of 1–4 km in depth indicate predominantly shallow seismic moment release. No studied earthquakes have unambiguous geological evidence for preceding surface-rupturing earthquakes on the same faults and five earthquakes contain evidence of absence of preceding ruptures since the late Pleistocene, collectively highlighting the challenge of using mapped active faults to predict future seismic hazards. Estimated maximum fault slip rates are 0.2–9.1 m Myr-1 with at least one order of uncertainty. New estimates for rupture length, fault dip, and coseismic net slip can be used to improve future iterations of earthquake magnitude—source size—displacement scaling equations. Observed environmental effects include primary surface rupture, secondary fracture/cracks, fissures, rock falls, ground-water anomalies, vegetation damage, sand-blows / liquefaction, displaced rock fragments, and holes from collapsible soil failure, at maximum estimated epicentral distances ranging from 0 to ~250 km. ESI-07 intensity-scale estimates range by ± 3 classes in each earthquake, depending on the effect considered. Comparing Mw-ESI relationships across geologically diverse environments is a fruitful avenue for future research.

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