Shanaka de Silva

All things volcanic, but particularly big bangs. Equity in Geoscience. Mars Analog geomorphology. Outreach #BIPOC #BAME #BLM All opinions and posts are my own.

[Nature is Amazing ☘️ @AMAZlNGNATURE]

This is how planets of the solar system rotate

[Prof Lennart Nacke, PhD @acagamic]

Ever feeling like that when you're doing your conference presentations?

[Shanaka de Silva @supereruption]

How do volcanic systems recover after a supereruption? The answer may lie in zircon crystals like the one I am analyzing on the IMS 1300-HR3 at Curtin University in Perth, Australia. Scale bar (bottom left) is 100 microns. Stay tuned. @OSUCEOAS

[Shanaka de Silva @supereruption]

With excellent post docs Alejandro Cisneros and Walter Báez using the Cameca IMS 1300 ion probe @JDLCentre to analyze zircons and allanites to contrain the timing of the run up eruptions at volcanoes from Indonesia, Argentina, Japan, Peru, Bolivia, and Saudi Arabia. #OSUCEOAS

[Dr Robin George Andrews 🌋☄️ @SquigglyVolcano]

🚨🌋 New eruption’s just started on Iceland’s Reykjanes Peninsula. With respect for those in the imperilled Grindavík, it’s so weird how this has become fairly normal and almost quotidian by this stage.

That’s good, by the way. Not normal = unpredictable and destructive.

[Shanaka de Silva @supereruption]

2 of 2

[Shanaka de Silva @supereruption]

Done! A productive week exploring a few more details of the worlds largest supervolcano, Toba. Rainy weather and thick jungle didn't put us off and we hit all our targets. With Indyo Pratomo, Alejandro Cisneros, Tushar Mittal, Axel Schmitt, Martin Danišìk, Gustam Lubis. 1 of 2

[Shanaka de Silva @supereruption]

@OxUniEarthSci @davidmpyle Congratulations Dave!

[Shanaka de Silva @supereruption]

@geowhateverist Always difficult to beat in the Final.

[Shanaka de Silva @supereruption]

@LMU_Volc @RonSukiRon @IAVCEI_official It’s been a great week. Amazing location, spectacular geology, stimulating discussions, and fine, fine food and libations.

[Shanaka de Silva @supereruption]

@Ulli_Bua @taburiente @efadi_LP @ita_dc @rubenlodi Fall deposits filling a basin/depression exposed by erosion.

[Shanaka de Silva @supereruption]

For those interested in arc magmatism. This finally came out after a yeoman attempt by the first author to quantify regional eruption rates as accurately as possible. https://t.co/orgTN1zGj8 A useful dataset and some interesting insights. @OSUCEOAS @AucklandUni

[Johns. @CricCrazyJohns]

Historic moment in Test cricket - Take a bow, Kiwis.

[Mineralogical Society of America @MinSocAm]

American Mineralogist:
3D zoning of barium in alkali feldspar

https://t.co/PuhDkg7AJq

Lubbers et al. used (microCT) to observe 3D chemical zoning in natural sanidine minerals. Implications for petrological tools that interpret mineral zoning (e.g., diffusion chronometry)

[Shanaka de Silva @supereruption]

@GeoJanUoA I don’t see much writing happening! Is this a boondoddle? 😂😉🤣

[Shanaka de Silva @supereruption]

Walking on the moon! Spectacular inflated pahoehoe, pahoehoe toes and glassy squeeze-outs in distal flow fronts from youngest (suspected <1000 years) basalt flow from Jabal Qidr in Harrat Khaybar, Saudi Arabia. @SgsOrgSa @KingSaudUni @ibnlaboun @OSUCEOAS

[Shanaka de Silva @supereruption]

@deepseadawn Right back at you Dawn!!!

[Shanaka de Silva @supereruption]

Interested in Quaternary volcanic chronology? Here is our latest Zircon Double Dating (ZDD) effort at Changbaishan/Tiancho volcano. https://t.co/nPyCfsNF4d

[هيئة المساحة الجيولوجية السعودية @SgsOrgSa]

تعاوناً مع @GG_ksu أقامت @SgsOrgSa محاضرة علمية بعنوان " البراكين المنتشرة حول العالم وفي الحرات العربية “ قدمها البروفيسور شانكا دي سيلفا، أستاذ علم البراكين بجامعة ولاية أوريغون الأمريكية لتعريف المشاركين بالطرق المستخدمة في الظواهر البركانية المنتشرة حول العالم ودوافع دراستها.

[Red Geocientífica de Chile @RedGeoChile]

Impresionante registro del pulso eruptivo de esta tarde en el Volcán Láscar captado por un grupo de excursionistas a solo metros del cráter.
Según reportan, debieron evacuar y descender inmediatamente del macizo, actualmente se encuentran a salvo. No hay personas lesionadas.