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Tamsin Mather

Professor of Earth Sciences, University of Oxford
My main research interests centre on the science behind volcanoes and volcanic behaviour. My motivation is to understand volcanoes as (a) natural hazards, (b) a key planetary scale process throughout geological time, vital for maintaining habitability and (c) natural resources (e.g., geothermal power and the development of ore deposits).

Specific interests include:

The atmospheric chemistry of volcanic plumes including the effects due to background air mixing into the hot gas mixture and volcanic lightning;

Quantifying and understanding the volcanic fluxes of chemical species of atmospheric importance over different temporal and spatial scales (gases and particles) and their roles in global geochemical cycles;

Volcanic degassing processes and the formation of volcanic aerosol;

The emission and chemistry of mercury in volcanic plumes;

The ultimate fate, atmospheric and environmental effects of volcanic emissions;

Using stable isotopes to understand volcanic processes;

The cycling of volatiles through subduction zones;

Patterns and forcing of volcanism on the arc scale;

Studying volcanic deformation in order to understand the physical processes of magma movement and storage and the structure and stability of volcanic edifices.

These interests also lead me away from volcanoes at times and I have also studied the emissions from an oil depot fire (Buncefield 2005) and am generally interested in the global mercury cycle as well as other biogeochemical cycles.

Iceland on high alert for volcanic eruption – what we know so far

Nov 15, 2023 01:43 am UTC| Nature

The Reykjanes peninsula in south-west Iceland trembled with an intense swarm of earthquakes on the afternoon of Friday November 10. Hundreds of quakes were detected on the regional networks of seismometers and several were...

Economy

South Korea’s Economic Growth Stalls Amid Tariffs and Political Turmoil

South Koreas economy showed minimal growth last quarter as global trade risks and weak domestic demand continued to weigh on Asias fourth-largest economy, according to a Reuters poll of economists. The country is battling...

Bank Indonesia Expected to Hold Rates Steady Amid Rupiah Pressure and U.S. Tariff Concerns

Bank Indonesia is set to keep its benchmark interest rate unchanged at 5.75% on Wednesday, according to a Reuters poll of 26 economists, as the central bank aims to stabilize the rupiah amid mounting pressure from U.S....

Oil Prices Rebound Amid Short-Covering, Tariff and Fed Worries Linger

Oil prices edged higher in early Tuesday trading as investors covered short positions following steep losses a day earlier. Brent crude rose 0.8% to $66.77 per barrel, while U.S. West Texas Intermediate (WTI) gained 0.8%...

Gold Steady After Record High as Fed Uncertainty and US-China Tensions Boost Safe-Haven Demand

Gold prices remained steady in early Asian trading on Tuesday, holding near record highs driven by growing safe-haven demand amid intensifying U.S.-China trade tensions and uncertainty over U.S. monetary policy. Spot gold...

China’s Q1 Auto Exports Surge 16% Amid Strong Global Demand

Chinas automobile exports continue to climb, reaching 1.54 million units in the first quarter of 2025a 16% year-on-year increase, according to the China Passenger Car Association (CPCA). The growth underscores the countrys...

Politics

Global Leaders Mourn Death of Pope Francis, A Voice for Peace and the Poor

Pope Francis, the first Latin American leader of the Roman Catholic Church, died at 88 after battling double pneumonia. World leaders expressed deep sorrow and reverence for a pontiff who championed peace, justice, and...

Trump to Attend Pope Francis Funeral, Reaffirms Support for Catholic Community

U.S. President Donald Trump announced via Truth Social that he and his wife, Melania Trump, will attend the funeral of Pope Francis in Rome. The news highlights Trumps ongoing connection with the Catholic community, a...

Albanese Leads as Early Voting Begins in Tight Australian Election

Early voting for Australias May 3 federal election opened on Tuesday, with Prime Minister Anthony Albaneses center-left Labor party holding a narrow lead over the conservative opposition. With early and postal voting on...

DOJ Halts Controversial Plan to Dismantle Tax Division Amid Backlash

The U.S. Department of Justice (DOJ) has abandoned a controversial plan to dismantle its Washington-based Tax Division and redistribute prosecutors to U.S. attorneys offices nationwide. The decision, revealed in an...

Paul Atkins Appointed as New SEC Chairman, Marking Return of Business-Friendly Leadership

Paul Atkins, a former U.S. Securities and Exchange Commission (SEC) commissioner known for his pro-business stance, has officially been sworn in as the new SEC chairman. The SEC confirmed his appointment in a statement...

Science

Kennedy Sets September Deadline to Uncover Autism Causes Amid Controversy

U.S. Health and Human Services Secretary Robert F. Kennedy Jr. announced a bold plan to identify the cause of autism by September 2025. Speaking at a cabinet meeting with President Donald Trump, Kennedy declared a global...

AstraZeneca’s Imfinzi Gets US Approval for Bladder Cancer Treatment

AstraZenecas drug Imfinzi (NASDAQ: AZN) has received U.S. approval to treat adult patients with muscle-invasive bladder cancer, a significant advancement in cancer therapy. The approval allows Imfinzi to be used in...

Sanofi’s New Hemophilia Drug Qfitlia Gains FDA Approval with Breakthrough Bimonthly Dosing

The U.S. Food and Drug Administration (FDA) has approved Qfitlia, a groundbreaking hemophilia treatment by French pharmaceutical giant Sanofi (NASDAQ: SNY). Designed for patients aged 12 and older with hemophilia A or B,...

FDA Vaccine Chief Peter Marks Resigns Amid Controversy Over Transparency

Peter Marks, the U.S. Food and Drug Administrations (FDA) top vaccine official, has resigned after reportedly being forced out by the Department of Health and Human Services (HHS), according to The Wall Street Journal....

Museums have tons of data, and AI could make it more accessible − but standardizing and organizing it across fields won’t be easy

Ice cores in freezers, dinosaurs on display, fish in jars, birds in boxes, human remains and ancient artifacts from long gone civilizations that few people ever see museum collections are filled with all this and more....

Technology

Amazon Pauses Some AWS Data Center Leases Amid AI Demand Slowdown

Amazon.com (NASDAQ:AMZN) has reportedly paused portions of its data center leasing negotiations for Amazon Web Services (AWS), signaling a potential slowdown in demand from major artificial intelligence (AI) clients,...

Nintendo Faces Tariff Hurdles Ahead of Switch 2 Launch

Nintendo is preparing to launch the highly anticipated Switch 2 on June 5, marking eight years since the original Switch debuted. The console, which sold over 150 million units globally, became a pandemic-era favorite....

Apple iPhone Sales Drop 9% in China as Xiaomi Surges 40%

Apples iPhone shipments in China dropped 9% year-over-year in Q1 2025, making it the only major smartphone brand to report a decline, according to IDC. The U.S. tech giant shipped 9.8 million iPhones during the quarter,...

Nvidia Faces $5.5B Hit as U.S. Restricts H20 AI Chip Exports to China

Nvidia (NASDAQ:NVDA) announced it will incur $5.5 billion in charges after the U.S. government indefinitely restricted exports of its H20 AI chip to China, a critical market for its data center products. The H20 chip,...

Intel Restructures Leadership Under New CEO to Boost AI and Engineering Focus

Intels new CEO, Lip-Bu Tan, has initiated a major leadership shakeup aimed at streamlining operations and reviving the chipmakers competitive edge. In a recent internal memo obtained by Reuters, Tan announced a flatter...