e-Book and Hardcover available in

Springer Store

and on Amazon.


Geology, Eruptive Activity, and Monitoring of a High-Risk Volcano

Book Series: Active Volcanoes of the World


844 pages,  Springer, 2022.

This book provides the first comprehensive compilation of cutting-edge research on Merapi volcano on the island of Java, Indonesia, one of the most iconic volcanoes in the world. It integrates results from both the natural (geology, petrology, geochemistry, geophysics, physical volcanology) and social sciences, and provides state-of-the-art information on volcano monitoring, the assessment of volcanic hazards, and risk mitigation measures.

As one of Indonesia’s most active and dangerous volcanoes, Merapi is perhaps best known for its pyroclastic density currents, which are produced by gravitational or explosive lava dome failures (commonly referred to as Merapi-type nuées ardentes). Merapi’s eruptions have posed a persistent threat to life, property and infrastructure within the densely populated areas on the volcano’s flanks, as demonstrated most recently by catastrophic eruptions, which attracted worldwide media interest.

ISBN: 978-3-031-15039-5 (Hardcover)

ISBN: 978-3-031-15040-1 (eBook)






Tenerife and Teide volcano

With a Visit to La Palma


104 pages, English - German - Spanish, Ediciones Saquiro s.l., 2022.

Have you ever wondered why the landscape of Tenerife looks the way it does?


If so, this introduction to the volcanology of the Canarian Archipelago is for you.

Written with the whole family in mind, this guide is easy to grasp, contains hilarious pictures and is topped by the opportunity for hands on learning at 17 fascinating Geosites.

IMG_7191 (1)
IMG_7145 (1)





Geology and Scenery of 76 selected localities


265 pages, English - German - Spanish, Ediciones Saquiro s.l., 2018.


The Canary Islands are acknowledged as a splendid geological laboratory that is unique among the ocean islands of the world thanks to their great variety of volcanic features. This book is a compendium of these geological wonders and provides an inside into nature and history of the Tenerife island while covering many key areas of volcanology.


The carefully selected geosites showcase the most interesting and representative geological products, landforms and structures Tenerife has to offer. Presented with breathtaking photographs, brief explanations of their origin and significance and precise indication of their position, the reader will be able to admire each of the 76 localities, including the beautiful scenery and gain great inside on how these spectacular and colourful landscapes came into being and what they signify in space and time.


A very big thank you from us both for the copy of your splendid book on Tenerife geology. The artwork is outstanding and should be helpful to non-geologist tourists to the island, just as much as the professional and amateur geologist. Very well done to the 3 authors and the publishers too - the reproduction of diagrams is outstanding.

Dr. Colin Donaldson

e-Book and Paperback available in

Springer Store

and on Amazon.



196 pages, Springer, 2018.


This GeoGuide provides an overview of the geology of Alnö, combined with an up-to-date field itinerary. Covering all major geological aspects, it offers an essential summary of Alnö and its intriguing magmatic rocks in a compact form suitable for field excursions and home study alike. As one of the type localities for carbonatite, the late Proterozoic Alnö ring complex has been a crucial site for carbonatite-related research (next to the Fen complex in Norway), and provided one of the earliest test beds for this unique group of igneous rocks. Five geological excursions introduce the visitor to the most rewarding outcrops, including detailed descriptions and a wealth of high-quality colour photographs. The excursions are complemented by a detailed review of the history of scientific investigation on Alnö and, in particular, a catalogue of exotic and common minerals associated with the complex’s carbonatitic and alkaline silicate rocks. Finally, a summary of its trace element and isotope geochemistry as well as a brief outlook on Alnö’s potential as a future source of Rare Earth Elements (REEs) completes the book.



636 pages, Elsevier, 2016.


The Geology of the Canary Islands provides a concise overview of the geology and volcanology of the Canary Islands, along with 27 carefully planned day excursions comprising trips on all of the islands. Each stop includes a description on how to approach a site and where to park with GPS locations provided.


The book covers all the spectacular features of the islands, including active ocean island volcanoes whose origins are linked to a hot spot or plume causing anomalously hot mantle material to intrude the African plate, submarine volcanic sequences uplifted inside the islands, sub- aerial shield volcanoes, and the remains of giant lateral collapses.


Includes a forward by Prof. C. J. Stillman (Trinity College Dublin), a leading expert on the volcanology and geology of the Canary Islands

Features 500 full color images, coupled with in-depth introductory text and a chapter on each island, followed by 27 guided excursions that include all of the seven islands of the archipelago

Familiarizes the reader with the variety of volcanic landforms and eruptive products in the Canary Islands and provides practical support in recognition, recording, and interpretation

Develops understanding of growth, evolution, and destruction of ocean island volcanoes, promoting temporal and spatial thinking within a given geological framework


e-Book and paperback available in Elsevier Store and on Amazon.

Elsevier SciTech Connect 'Ask Our Experts' Interview.


Geology and Eruptions of a Highly Differentiated Oceanic Stratovolcano

Book Series: Active Volcanoes of the World


279 pages, Springer, 2013.


Teide Volcano has many different meanings:

For the Guanche aborigines, who endured several of its eruptions, it was Echeide (Hell).


Early navigators had in Teide, a lifesaving widely visible landmark that was towering over the clouds.


For the first explorers, Teide was a challenging and dangerous climb, since it was thought that Teide's peak was so high that from its summit the sun was too close and far too hot to survive.


Teide was considered the highest mountain in the world at that time and measuring its height precisely was a great undertaking and at the time of global scientific significance.


For von Buch, von Humboldt, Lyell and other great 18th and19th century naturalists, Teide helped to shape a new and now increasingly 'volcanic' picture, where the origin of volcanic rocks (from solidified magma) slowly casted aside Neptunism and removed some of the last barriers for the development of modern Geology and Volcanology as the sciences we know today.


For the present day population of Tenerife, living on top of the world's third tallest volcanic structure on the planet, Teide has actually become "Padre Teide", a fatherly protector and an emblematic icon of Tenerife, not to say of the Canaries as a whole.


The UNESCO acknowledged this iconic and complex volcano, as "of global importance in providing evidence of the geological processes that underpin the evolution of oceanic islands". Today, 'Teide National Park' boasts 4 Million annual visitors including many 'volcano spotters' and is a spectacular natural environment which most keep as an impression to treasure and to never forget.



Dr. R.I. Tilling (USGS, Chief Scientist Volcano Hazards): "Given its scope and breadth, the 'Carracedo and Troll' book is destined to have a long shelf-life, serving as a valuable reference work for decades to come.

... this book sets a benchmark for the production of similar summaries of the other historically and potentially active volcanoes of the Canary Islands."


Dr. K. Németh (Massey University New Zealand): Overall, I think the first book of the Active Volcanoes of the World series, Teide Volcano, is an excellent work that is detailed enough to be a reference book on the shelf of any volcanologist. The easy to understand style of the book means that it could equally be a general guidebook for a geotourist wishing to plan a trip to Teide. I can recommend this book to anyone with a reasonably good earth science background and a general interest in volcanic geology.

Full Review in Bulletin of Volcanology 75:759 by Károly Némethby [PDF].


eBook, Hardcover and Softcover available at Springer Store incl. free preview and on Amazon.



The Palaeocene Igneous Rocks of the Isle of Rum, Inner Hebrides


152 pages, NMSE-Publishing Ltd. The Geological Society of Edinburgh, 2009.


This pocket-sized, flexi-back guide gives an overview of the geological evolution of the island of Rum and provides a comprehensive selection of excursions illustrating Rum's Paleocene igneous rocks. It gives advice on travelling to the island, accommodation, weather conditions - and midges.


Journal of the Russell Society:'Overall this is a concise and well-written field guide and a must for anyone planning a geological expedition to the "far flung" islands of the Inner Hebrides - using this guide will make such a trip well worth it.' Proceedings of the Geologists' Association ' ... thorough and clearly presented with numerous photographs, maps and illustrations ... images are sharp and well-captioned. ... a must-aehv guide!' Mineral News ' ... thoroughly researched and wonderfully detailed. ... The descriptions are fabulous ... The guidebook is designed to be practical with a water-resistant cover and colour coding of page edges so that a particular excursion can be found quickly... a top quality publication at a very affordable cost, and I recommend it highly.'


Paperback available in the National Museums Scotland Shop and on Amazon.

For more details feel free to check out EARTHWISE from the British Geological Survey.



Volcanological Field Methods - Time Travel on an Ocean Island


Uppsala University Report Series A, No. 75, p. 1-161. (ISSN: 1400-1055), 2012.

Review VMSG Newsletter 19 (5/12) with comment on the fieldtrip [PDF].


Geological walks on the Isle of Rum, Scotland: inside an ancient volcano

Troll, Nicoll, Emeleus & Holohan

Dept. of Geology Publications, Trinity College Dublin. p. 1-52. (ISBN: 095210665), 2007.





The scientific discovery of Merapi: from ancient Javanese sources to the 21st century

R Gertisser, VR Troll, IGMA Nandaka- …: Geology, Eruptive Activity, and Monitoring of a…, 2023

Merapi is Indonesia's most active volcano and one of the most iconic volcanoes
worldwide. Renowned for its almost continuous eruptive activity and its magnificent
summit dome as well as the frequent occurrence of hazardous nuées ardentes…

The magma plumbing system of Merapi: The petrological perspective

VR Troll, FM Deegan- Merapi Volcano: Geology, Eruptive Activity, and…, 2023

Abstract Merapi volcano in Central Java is one of the most active volcanoes in the
Sunda arc and poses a continuous threat to the local population. Basaltic-andesites
from Merapi carry a voluminous crystal cargo and varied inclusion types, suggesting…

Magma-carbonate interaction at Merapi volcano, Indonesia

FM Deegan, VR Troll, R Gertisser, C Freda- …, Eruptive Activity, and Monitoring of a…, 2023

Merapi volcano, Indonesia, is a highly active arc volcano built upon a crustal
succession that includes thick carbonate sequences. Calc-silicate (skarn) xenoliths
are frequently found in Merapi's erupted products and constitute direct evidence for…

Merapi: Evolving knowledge and future challenges

IGMA Nandaka, R Gertisser, TR Walter, VR Troll…- Merapi Volcano: Geology…, 2023

Despite the significant progress in our understanding of Merapi and its activity, as
demonstrated by the contributions in this book, fundamental scientific questions
about the volcano have remained unanswered and there are significant challenges…

Byrne P., Holohan E., Kervyn M., van Wyk de Vries B. and Troll V.R. (2015)

Analogue modelling of volcano flank terrace formation on Mars.

In: Platz, T., Massironi M., Byrne P.K. and Hisinger H. (Eds.)

Volcanism and Tectonism Across the Inner Solar System.

Geological Society of London, Special Publications 401, 185-202.


Delcamp A., Petronis M. and Troll V.R. (2014)

Discerning magmatic flow patterns in shallow-level basaltic dykes from the NE rift zone of Tenerife, Spain, using the Anisotropy of Magnetic Susceptibility (AMS) technique.

In: Ort M.H., Porreca M. & Geissmann J.W. (Eds.) 

The Use of Palaeomagnetism and Rock Magnetism to Understand Volcanic Processes.

Geological Society of London, Special Publications 396.


Carracdeo J.C. and Troll V.R. (2013)

From Myth to Science: The Contribution of Mount Teide to the Advancement of Volcanology. 

In: Carracdeo J.C. and Troll V.R. (Eds.) Teide Volcano.

Springer, 2013.


Carracdeo J.C. and Troll V.R. (2013)

Structural and Geological Elements of Teide Volcanic Complex: Rift Zones and Gravitational Collapses. 

In: Carracdeo J.C. and Troll V.R. (Eds.)

Teide Volcano. Springer, 2013.


Troll V.R., Deegan F.M., Delcamp A., Carracedo J.C., Harris C., van Wyk de Vries B., Petronis M.S., Perez-Torrado F.J., Chadwick J.P., Barker A.K. and Wiesmaier S. (2013)

Pre-Teide Volcanic Activity on the Northeast Volcanic Rift Zone. 

In: Carracdeo J.C. and Troll V.R. (Eds.)

Teide Volcano. Springer, 2013.


Wiesmaier S., Troll V.R., Rodríguez-Badiola E. and Carracedo J.C. (2013)

Timing, Distribution and Petrological Evolution of the Teide-Pico Viejo Volcanic Complex. 

In: Carracdeo J.C. and Troll V.R. (Eds.)

Teide Volcano. Springer, 2013.


Wiesmaier S., Troll V.R., Carracedo J.C., Ellam R.M., Bindeman I., Wolff J.A. and Deegan F.M. (2013)

Magmatic Differentiation in the Teide-Pico Viejo Succession: Isotope Analysis as a Key to Deciphering the Origin of Phonolite Magma.

In: Carracdeo J.C. and Troll V.R. (Eds.)

Teide Volcano. Springer, 2013.


Wiesmaier S., Deegan F.M., Troll V.R., Carracedo J.C. and Chadwick J.P. (2013)

Magma Mixing in the 1100 AD Montaña Reventada Composite Lava Flow: Interaction of Rift Zone and Central Complex Magmatism. 

In: Carracdeo J.C. and Troll V.R. (Eds.)

Teide Volcano. Springer, 2013.


Perez-Torrado F.J., Carracedo J.C., Rodriguez-Gonzalez A., Rodríguez-Badiola E., Paris R., Troll V.R., Clarke H. and Wiesmaier S. (2013)

Eruptive Styles at the Teide Volcanic Complex. 

In: Carracdeo J.C. and Troll V.R. (Eds.)

Teide Volcano. Springer, 2013.


Carracedo J.C., Rodriguez-Gonzalez A., Perez-Torrado F.J., Fernandez-Turiel J.-L., Paris R., Rodríguez-Badiola E., Pestana-Perez G., Troll V.R. and Wiesmaier S. (2013)

Geological Hazards in the Teide Volcanic Complex. 

In: Carracdeo J.C. and Troll V.R. (Eds.)

Teide Volcano. Springer, 2013.