Cerro del Hierro, Spain: the largest exposed early Cambrian palaeokarst

2020 ◽  
pp. 1-14
Author(s):  
Eduardo Mayoral ◽  
María Eugenia Dies Álvarez ◽  
José Antonio Gámez Vintaned ◽  
Rodolfo Gozalo ◽  
Eladio Liñán ◽  
...  
Keyword(s):  
South America ◽  
Mediterranean Region ◽  
Early Cambrian ◽  
Karst Development ◽  
Global Context ◽  
Tectonic Events ◽  
Extensional Tectonic ◽  
Geomorphological Processes ◽  
The Uk ◽  
Regressive Events

Abstract We study the largest exposed example of an early Cambrian palaeokarst, associated with laterites and developed during rifting of the Ossa–Morena Zone. The lithostratigraphy, biostratigraphy, facies and the genesis reflect episodes of sea-level fall (Cerro del Hierro Regression) related to tectonic events and palaeoclimate. This palaeokarst can be primarily considered as the result of early Cambrian polyphase karstification in an extensional tectonic regime, later modified by Neogene–Quaternary geomorphological processes. The event may correlate with other regressive events of a similar age in Spain, Italy, United Kingdom, South America and Australia. This episode also has local names (e.g. Cerro del Hierro Regression in the Mediterranean region; Woodlands Regression in the UK). It is sometimes accompanied by additional karst development outside of Spain that is compared and interpreted in a global context.

scholarly journals Two decades of neuroscience publication trends in Africa

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
M. B. Maina ◽  
U. Ahmad ◽  
H. A. Ibrahim ◽  
S. K. Hamidu ◽  
F. E. Nasr ◽  
...  
Keyword(s):  
Accurate Data ◽  
Publication Trends ◽  
Global Context ◽  
Current State ◽  
Neuroscience Research ◽  
Research Environments ◽  
New Policies ◽  
The Uk ◽  
Extract Information

AbstractNeuroscience research in Africa remains sparse. Devising new policies to boost Africa’s neuroscience landscape is imperative, but these must be based on accurate data on research outputs which is largely lacking. Such data must reflect the heterogeneity of research environments across the continent’s 54 countries. Here, we analyse neuroscience publications affiliated with African institutions between 1996 and 2017. Of 12,326 PubMed indexed publications, 5,219 show clear evidence that the work was performed in Africa and led by African-based researchers - on average ~5 per country and year. From here, we extract information on journals and citations, funding, international coauthorships and techniques used. For reference, we also extract the same metrics from 220 randomly selected publications each from the UK, USA, Australia, Japan and Brazil. Our dataset provides insights into the current state of African neuroscience research in a global context.

The Neoproterozoic to early Cambrian in southwest Mongolia: an introduction

1996 ◽  
Vol 133 (4) ◽  
pp. 365-369 ◽  
Author(s):  
M. D. Brasier ◽  
D. Dorjnamjaa ◽  
J. F. Lindsay
Keyword(s):  
Economic Change ◽  
Interdisciplinary Studies ◽  
Early Cambrian ◽  
Altay Mountains ◽  
Event Stratigraphy ◽  
Igcp Project ◽  
The Uk ◽  
Academy Of Sciences

In this collection of papers, we attempt to document, through interdisciplinary studies in southwest Mongolia, the interlinked evolution of the biosphere and lithosphere over the Neoproterozoic–Cambrian interval. In so doing, we bring together the fruits of two expeditions to the Altay mountains, sponsored by IGCP Project 303 on Precambrian–Cambrian Event Stratigraphy. Both expeditions took place during an interval of great socio-economic change in the region. The first expedition, in 1991, was one of the last in a series of Joint Soviet–Mongolian Palaeontological Expeditions, organized by A. Yu. Rozanov and R. Barsbold, and led by E. A. Zhegallo and A. Yu. Zhuravlev. Scientists from Sweden and the UK also participated. The second, 1993, expedition was one of the first IGCP project meetings organized independently by the Mongolian Academy of Sciences, and was led by M. D. Brasier and D. Dorjnamjaa.

Early Cambrian Seismic Events and Their Tectonic Significance in Western Zhejiang

2012 ◽  
Vol 524-527 ◽  
pp. 42-48
Author(s):  
Fu Sheng Guo ◽  
Zhao Bin Yan ◽  
Liu Qin Chen
Keyword(s):  
Seismic Event ◽  
Regional Distribution ◽  
Sedimentary Rocks ◽  
Seismic Events ◽  
Time Interval ◽  
Early Cambrian ◽  
Distribution Characteristics ◽  
Early Paleozoic ◽  
Tectonic Events ◽  
Tectonic Significance

The two early Cambrian seismic events could be found from sedimentary rocks at Peilingjiao section of Kaihua County, Baishi and Fangcun sections of Changshan County in western Zhejiang, except for Jiangshan area. The seismic event at Baishi outcrop can be correlated to the second seismic event at Peilingjiao section. Taking Fangcun as epicenter of the second seismic event, the magnitude of paleoseism in western Zhejiang is about 7~7.6. According to investigation on regional distribution of seismic events, the two seismic activities should be regulated by large Kaihua-Chun’an fault, but unrelated with Jiangshan-Shaoxing fault or Changshan-Xiaoshan fault. However, the formation time of Kaihua-Chun’an fault has not yet been determinate. Based on controlling on Silurian, the possible formation age was inferred to early Paleozoic. The distribution characteristics of seismites indicate that the Kaihua-Chun’an fault was already being active during early Cambrian and seismic activities may be response to Sinian tectonic events in western Zhejiang. By the way of analysis on paleoseismic rhythm, the time interval of the two seismic events in western Zhejiang is less than 5.0 Ma, which may be the result of early frequent activities of Kaihua-Chun’an fault.

‘British Values Are Also Values All Around the World’: Teaching Fundamental British Values through a Human Rights Lens

2020 ◽  
Author(s):  
Alison E C Struthers ◽  
Julie Mansuy
Keyword(s):  
Human Rights ◽  
Primary Schools ◽  
Formal Education ◽  
National Level ◽  
Formal Schooling ◽  
Desire For Children ◽  
Global Citizens ◽  
Global Context ◽  
National Values ◽  
The Uk

Abstract Since 2014, the promotion of Fundamental British Values (FBV) has been a requirement across formal schooling in England. The agenda has, however, faced criticism from various stakeholders. Much of this denunciation has been directed at the opaque nature of FBV, but the agenda is problematic for more concerning reasons. It is arguable that, in light of the current threat from ethno-nationalism, frameworks such as FBV that focus on a particular definition and formulation of national values run the risk of being interpreted in a manner that is exclusionary and liable to ‘other’ different ethnic groups in the classroom. The FBV framework furthermore overlooks the fact that the UK isalready subject to numerous international human rights obligations, including many that mandate the provision of holistic and effective human rights education at all levels of formal education. This article therefore draws upon the findings of a pilot study conducted with Year 5 learners in four primary schools in the West Midlands showing that teaching about human rights through the FBV agenda is possible, by linking discussion of values at the national level to broader human rights principles. Such an approach satisfies the government’s desire for children to learn about FBV, whilst highlighting that these values also exist in a global context. This, in turn, is likely to be a more effective way of encouraging learners to be global citizens who will contribute to the building of a broader culture that is respectful of human rights.

Control of Rush Skeletonweed (Chondrilla juncea) with Herbicides

1993 ◽  
Vol 7 (4) ◽  
pp. 954-959 ◽  
Author(s):  
John W. Heap
Keyword(s):  
South America ◽  
Central Europe ◽  
Mediterranean Region ◽  
Survival Rates ◽  
Perennial Weed ◽  
Herbicide Treatments ◽  
Rush Skeletonweed ◽  
North And South America ◽  
North And South

A range of herbicide treatments was evaluated for long-term control of rush skeletonweed, a perennial weed of crops and pastures in North and South America, the Mediterranean region, central Europe, and Australia. Clopyralid (75 to 300 g ai/ha) and clopyralid mixtures with 2,4-D, MCPA, or dicamba were effective, resulting in survival rates of 0 to 4% for the most successful treatments applied for three consecutive seasons. Metsulfuron (9 g ai/ha) and 2,4-D (850 g ai/ha) significantly reduced survival when applied at high rates for three years. Barley yield in the season following control was increased by up to 195 to 199% of yield from untreated plots. Evidence was found for differences in herbicide susceptibility between narrowleaf and broadleaf forms of rush skeletonweed.

The UK's proposed foreign direct investment regime: the tide is turning

2018 ◽  
Vol 17 (2) ◽  
pp. 73-78
Author(s):  
Veronica Roberts
Keyword(s):  
Foreign Direct Investment ◽  
National Security ◽  
Foreign Investment ◽  
Direct Investment ◽  
White Paper ◽  
Security Risk ◽  
Global Context ◽  
Uk Government ◽  
The Government ◽  
The Uk

The UK Government has recently published a White Paper proposing the creation of a new foreign investment regime, under which the Government would have powers to review a very broad range of transactions if they give rise to a national security risk. This article reviews the key provisions of the Government's proposal and also highlights the broader global context, with a number of other countries also expanding their own foreign investment regimes.

The psychosocial significance of social character, habitus and structures of feeling in research on neoliberal post-industrial work

2019 ◽  
Vol 12 (3) ◽  
pp. 259-276
Author(s):  
Luis Jimenez
Keyword(s):  
Historical Memory ◽  
Secondary Analysis ◽  
Social Character ◽  
Global Context ◽  
Gendered Identities ◽  
Structures Of Feeling ◽  
Theoretical Frame ◽  
Raymond Williams ◽  
The Uk ◽  
Post Industrial

This article highlights the psychosocial relevance of Erich Fromm’s concepts of ‘social character’ and ‘social change’ to broaden our understanding of the intergenerational traumatic legacy of neoliberalism. As part of this, it also reflects on the psychosocial significance of other related concepts ‐ namely Pierre Bourdieu’s ‘habitus’ and Raymond Williams’ ‘structures of feeling’ ‐ as ways to also acknowledge their significance when related to each other in emerging research on the neoliberal effects of changes in work and identities. This includes secondary analysis of my own earlier research on the psychosocial ramifications of the loss of stable work, changing worker-gendered identities, disrupted affect, community engagement and historical memory within a global context of insecure labour. This is all understood within a theoretical frame that stresses the emerging neoliberal forms of social character in the aftermath of the massive redundancies and unemployment experienced recently in post-industrial working-class communities in the UK.

A new estimate of the adopted gravity value at Rothera Station, Antarctic Peninsula

1999 ◽  
Vol 11 (4) ◽  
pp. 461-462 ◽  
Author(s):  
Philip C. Jones ◽  
Julie K. Ferris
Keyword(s):  
South America ◽  
Antarctic Peninsula ◽  
Base Station ◽  
Falkland Islands ◽  
Gravity Station ◽  
Gravity Network ◽  
Scientific Station ◽  
The Uk ◽  
The Antarctic ◽  
Gravity System

Because of the lack of a definitive air link to an international gravity base station, the Antarctic Peninsula gravity network was originally, and still is, tied to the Potsdam gravity system via long ship links to South America (Renner 1981, Kennett 1965). An indirect link from the British Antarctic Survey (BAS) scientific station at Rothera to an International Gravity Standardisation Net 1971 (IGSN 71) base station in the UK had previously been made via a link to the BAS gravity station on the Falkland Islands in Port Stanley (McGibbon 1988). Whilst the apparent gravity difference between Port Stanley and the base station in the UK had been calculated via a two-way air tie using a LaCoste and Romberg meter (McGibbon 1988) and later strengthened with three two-way air ties using four LaCoste and Romberg meters (Bassett 1987), the link between Port Stanley and Rothera was based on a one-way tie that included a lengthy ship borne passage (McGibbon 1988). The weakness of this link insured that the adopted gravity value at Rothera continued to be based on the ship ties made by Griffiths et al. (1964) and Kennett (1965). This note describes the strengthening of the gravity link between Rothera and Port Stanley and the subsequent reassignment of the adopted gravity value at Rothera Station.

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