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Silvia Frisia

Silvia Frisia

Associate Professor, School of Environmental and Life Sciences , University of Newcastle

Silvia has specialised in carbonate mineralogy and geochemistry while doing her Master of Science research at Berkeley (USA). She used Transmission Electron Microscopy and stable isotope analyses to recognise multi-step dolomitisation in carbonate platforms. Subsequently, she pioneered the study of terrestrial carbonate micro-structural and micro-morphological analyses as tool to reconstruct changes in their environments of formation, and relate these changes to climate and environmental parameters. These studies became the baseline for speleothem-based palaeoclimate Subsequently, Silvia pioneered the application of synchrotron radiation micro X-Ray fluorescence spectroscopy to speleothem studies. A major breakthrough of synchrotron work was the detection of sulphate layers in stalagmites which recorded past volcanic eruptions. The impact of Silvia's work is obviously circumscribed within the Earth Sciences community, and more specifically within carbonate and speleothem researchers. The overall impact in the specified communities is large, but small if compared to the impact of medical, ecological, economic research.

Research Expertise

Carbonates: sedimentology, mineralogy and geochemistry. Fabrics, trace element composition and C isotope composition of calcite and aragonite cements formed in continental (cave deposits) and marine (pore-filling) settings. Diagenesis in carbonate platforms, with particular focus on dolomitization. Diagenesis in continental carbonates with implications for re-setting of chemical signals. Synchrotron radiation bases micr XRF spectroscopy applied to low temperature carbonate geochemistry.

Climate Change Series

Volcanoes under the ice: melting Antarctic ice could fight climate change

Jun 16, 2017 05:05 am UTC| Nature

Iron is not commonly famous for its role as a micronutrient for tiny organisms dwelling in the cold waters of polar oceans. But iron feeds plankton, which in turn hold carbon dioxide in their bodies. When they die, the...

1 

Economy

U.S. 10-year Treasury yield climbs to January 2014 highs on signs of higher inflation, hopes of further rate hikes this year

The U.S. 10-year Treasury yield jumped to over 4-year high Monday as investors braced for a higher rate of inflation going forward and expectations of more rate hikes by the Federal Reserve this year. According to the...

German 10-year bunds hit lowest in over 1-month in succession to U.S. Treasuries, higher-than-expected April manufacturing PMI

The German 10-year bund prices slumped to over 1-month low Monday, succeeding similar trend in the U.S. Treasuries, which is likely to hit the 3.00 psychological mark, in a scenario of improving risk appetite, following a...

USD/MXN unlikely to witness solid momentum in near-term owing to heightened political uncertainty, says Commerzbank

The Mexican peso is not expected to witness any solid momentum over the near-term, owing to heightened political uncertainties within the domestic premises of the economy ahead of the July 1 Presidential elections....

FxWirePro: U.S. 10-year Treasury yield likely to rally up to 3.00 psychological level amid bounce in energy prices

The United States 10-year Treasury yield is expected to rally up to the 3.00 psychological mark, having already reached a 4-year high of 2.79 at the end of closing Friday amid a bounce in energy prices. This is, however,...

New Zealand 10-year bond yields close near 6-week high after U.S. benchmark Note approaches 3 pct; Asian stocks struggle to perform                             

New Zealand 10-year government bond yields close Tuesdays session at near 6-week high, after the United States benchmark counterpart, was seen approaching 3 percent, with yields up since January 2014 as Asian stocks...

Politics

Rise of cryptocurrencies could curb American power

There has been a lot of talk in foreign policy circles of the coming post-American world in which the international system will transition from a unipolar to a multipolar system. But, as we currently stand, the US remains...

South Africa's future hinges on Ramaphosa's strategic skills

South Africas 2018 State of the Nation address by the president of South Africa has been postponed. This unprecedented step makes it clear that the country is seeing the final days of Jacob Zuma as president although it...

Is full transparency good for democracy?

With the approval of President Donald Trump, the House of Representatives released the so-called Nunes memo on Feb. 2. In it, House Intelligence Committee Chairman Devin Nunes describes alleged abuses of surveillance...

Empowering the powerless: Let's end energy poverty

Power to the people, the activists chanted in the 1960s. The revolutionaries of yesteryear never dreamed of the scientific and technological innovations that could light up distant shelters and communities in the...

How neoliberalism is damaging your mental health

There is a widespread perception that mental ill health is on the rise in the West, in tandem with a prolonged decline in collective well-being. The idea that there are social and economic causes behind this perceived...

Science

Eyebrows Were Crucial For Human Survival, Study Says

The human eyebrows are often two of the most underrated and yet essential physical aspects of a persons appearance that influences interactions. For example, a unibrow can often result in mockery and the same goes for...

Undetected Asteroid Nearly Missed The Earth, Shows Glaring Holes In Detection Capabilities

Its a general rule to trust governments and space agencies to be able to do things like detect oncoming asteroids that might impact the earth at some point. However, a recent incident proves that there are still holes in...

Elon Musk Proves How Crazy He Is With Party Balloon And Bouncy House Idea

Tesla CEO Elon Musk is considered something of a mad scientist by a lot of people, but not all for the wrong reasons. He has taken huge risks and leaps of faith that would have caused many to age prematurely with dread but...

USDA Is Cool With Scientists Genetically Editing Food

In case anyone was wondering what the United States Department of Agriculture (USDA) was doing with all of the genetic engineering thats going on in the world of food, the answer is absolutely nothing. The agency recently...

Reputed Journal Retracts Flawed CRISPR Paper A Little Too Late

Science is a process that is often riddled with issues that affect the results of the work being done. This is why multiple experiments need to be conducted first before making conclusions and why papers need to be...

Technology

Another Doom Movie Is Being Made But No Theatre Release

The first movie made about the legendary video game property Doom didnt exactly work as well as the creators hoped, despite the presence of relatively known actors, including Dwayne The Rock Johnson and Karl Urban. It...

High-Stakes Fortnite Battle Royale Tournament In Vegas Shatters Records For Twitch Streamer

A testament to the overwhelming popularity of Epic Games Fortnite Battle Royale is how it seems to give Twitch streamer Ninja the ability to continue to break record after record, starting with his gaming sessions with the...

Firewatch Developer Acquired By Valve, Hints Of Future Games To Come?

Campo Santo was the indie development studio responsible for the massive hit, Firewatch. As indie games go, it offered one of the most unique experiences that was pulled off so well, it helped push the growth of the indie...

Fortnite Battle Royale College Scholarship, It’s Real

One of the biggest signs that eSports is becoming huge as an industry is not so much the sponsorship and the TV streaming deals, but the college scholarships that universities have started offering to potential athletes....

Gmail Accounts Are Sending Spam To Others And To Themselves

One of the most disturbing experiences a person can arguably have is receiving a message that they sent to themselves. More often than not, such occurrences happen by accident, but a recent rash of illicit internet...
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2018-04-24 00:45:23
0m

April 23 22:45 UTC Released

NZExt Migration & Visitors

Actual

13 %

Forecast

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11.4 %

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NZPerm/Long-Term Migration

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5480

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4970

January 31 00:00 UTC 119586119586m

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2016 bln ARS

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January 22 19:00 UTC 131406131406m

ARTrade Balance

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-1541 %

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2016 bln ARS

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Bln AR bln ARS

January 22 19:00 UTC 131406131406m

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-1541 %

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2016 bln ARS

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January 31 00:00 UTC 119586119586m

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Bln AR bln ARS

January 31 00:00 UTC 119586119586m

ARAnnual Primary Balance*

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2016 bln ARS

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