ACTA CARSOLOGICA 37/1 – 2008 161 CAVE GEOLOGy Art�ur N. Palmer , Cave Books, 2007, 454 pp, Letter, Hardback ISBN-13:978-0-939748-66-2, ISBN-10:0-939748-66-5 The book by Art Palmer, one of t�e main player in spe- leology and karst science during last few decades, came to me as a surprise. But its contest is far from t�at; t�e book is probably t�e best story about caves as modern karst science sees t�em. It covers almost all important aspects of (p�ysical) speleology. Therefore, “Geology” in t�e title �as to be understood in its widest context. w riting of Art Palmer is addictive. Even complex topics are clearly presented wit�out loosing t�e exact- ness. Reading t�e book, one almost feels like being in a cave and listening to Palmer’s explanations about its features, origin and relation to geology. The book is grap�ically nice and uniform. Layout, grap�ics and most pictures were made by Palmer �im- self, w�ic� is an incredible job and a gift to a reader. It surely enabled t�e really low price of t�e book. The content follows a logical line, starting from t�e explanations of w�at caves and karst are, describing and explaining t�e origin of caves and t�eir geometry in rela- tion to �ydrology and geology, and concluding wit� c�ap- ters dealing wit� various important aspects of caves. C�apter 1 introduces a reader to speleology. w� at are caves, �ow do t�ey look like and �ow do we explore t�em? C�apter 2, »Cave country«, presents landscape development, surface karst features, paleo and pseu- dokarst, and t�e worldwide distribution of caves and karst. An excellent and concise text supported by many p�otograp�s and figures. C�apter 3 describes t�e prop- erties, origin and structure of different karst rocks. It serves as a brief and concise introduction to different rock types in karst areas. C�apters 4 and 5 deal wit� flow and c�emistry of groundwater in karst areas. They are a perfect introduction to t�ese topics and a jump board to t�e special literature on groundwater flow and geoc�emistry. C�apters 6 - 9 are a sole of t�e book. They include a lot of aut�or’s original work. C�apter 6 describes �ow caves look like, c�apter 7 �ow t�ey evolve and c�apter 8 �ow rec�arge conditions define t�e geometry of caves. Palmer uses clear and logical line of arguments to dem- onstrate t�e relation between dissolution, groundwater flow and geometry of caves as we see t�em. Even a non- specialist can understand t�e importance of basic princi- ples of flow and dissolution in karst rocks to understand caves. C�apter 9 presents t�e influence of geology (i.e. li- t�ology, structure and t�e relations of caves to landscape evolution etc.) on cave patterns. C�apter 10 presents a concise review of cave miner- als. w it�out an intention to list t�em all, it gives basic concepts of (cave) mineralogy and describes important groups of minerals found in caves, t�eir growt� and en- vironment. REVIEw S AND REPORTS / POROč ILA ACTA CARSOLOGICA 37/1 – 2008 162 FRANCI GABROVŠEK C�apter 11 deals wit� t�e caves in volcanic rocks. In some way t�is c�apter is a condensed version of t�e w�ole book, but on volcanic caves. It starts wit� basic facts on volcanoes, describes t�e “cave country” , i.e. vol- canic landforms, t�e c�aracteristics and origin of volca- nic caves and finally minerals found in t�em. A perfect introduction to volcanospeleology wit� many examples. C�apter 12 presents a cave climate and processes related to it. C�apter 13 discusses caves in t�e context of time. It also gives a nice review of basic dating met�ods. C�ap- ter 14 is a practical introduction to cave studies. It in- troduces basic researc� and surveying tec�niques, as well as t�e interpretation of data and typical pitfalls in cave researc�. The knowledge of cave geology can add a lot to ot�er fields of geosciences. Some examples of using cave geol- ogy in areas suc� as water supply, engineering applica- tions, land use, petroleum geology, interpretation of geo- logical processes and mining are given in C�apter 15. Book ends wit� a glossary, a very extensive and up- to-date reference list and an index. Bonus features of t�e book are “grey boxes” , w�ere important topics w�ic� do not fit directly into t�e main line of text, are presented. They give a first �and prac- tical experience and instructions. How to make a cave map? How to take p�otograp�s underground? How to identify rocks in karst? How to measure flow rate in cave streams? How to use flow equations to interpret caves? w� at c�emical analyses can be done in t�e field? w�ic � units are used in water c�emistry and �ow muc� rock is dissolved in karst waters? w� at can be read from t�e scallops? w�ic � animals live in caves? How can we inter- pret cave origin from observations in caves? w� at causes t�e growt� of cave minerals? How to calibrate survey in- struments? The book fills a gap between special books on par - ticular topics and broad reference books presenting t�e cumulative knowledge on caves & karst. It will definitely widespread t�e knowledge on caves to all of t�e inter- ested public. If you are a caver, an eart� science student, a researc�er or any�ow interested in caves, buy t�is book. I am sure t�at you will enjoy reading it all t�e way t�roug� and it will make you feel muc� more confident w�en dis- cussing caves wit� ot�ers. The book contains 561 p�otos, 760 figures, 250 maps and diagrams on 454 printed pages. It can be ordered at Cave books (�ttp://www.cavebooks.com/) for $38.95. f ranci Gabrovšek