Pahoehoe lava ic2. (Fluid) • Distilled Water • Hotspring Water • IC2 Coolant • IC2 Hot Coolant • Pahoehoe Lava •. Pahoehoe lava ic2

 
 (Fluid) • Distilled Water • Hotspring Water • IC2 Coolant • IC2 Hot Coolant • Pahoehoe Lava •Pahoehoe lava ic2  Most machines will accept power from a wire on all 6 sides, but you (usually) only need one input

The pahoehoe lava flow is characterized by a broad flat surface that lacks any evidence of a channel and that is morphologically similar to terrestrial lava flows where pahoehoe lobes have coalesced to form flat plateaus. The three types of lava flow are pahoehoe, a’a, and pillow lava. ) 2 metallic-grey facings, b. The first and most obvious difference is that pahoehoe flows are smooth down to a scale of a few mm. Coolant is primarily used to craft 10k Coolant Cells, but can also be placed in the world for decorative purposes. Scientists think that this is the same as a lava type called "rubbly pahoehoe" on Earth. We present the evolution over 3 months of a 2016-2017 pāhoehoe flow at Kīlauea as it changed from a narrow sheet flow into a compound lava field fed by a stable system of tubes. EU is not related to Redstone signal, but some machines can be. Lava flows occur worldwide, and throughout history, various cultures (and geologists) have described flows based on their surface textures. One of the longest flows ever recorded was an eruption. It has the ability to process 2 stacks of items simultaneously. Type : Item Stackable : Yes (64) Coal Dust is an Item added by GregTech 4 and IndustrialCraft 2. IC2:reactorHeatSwitch:1. Both Kilauea and Parashant lavas are basaltic. Also, pahoehoe lava is made by cooling regular lava, not heating it, and it would make more sense for it not to harden at all in the Nether. The 2012–2013 flank eruption of Tolbachik volcano (Kamchatka) lasted 9 months and produced 0. The accurate modeling of this initial cooling is important for understanding the formation of the distinctive surface textures on pahoehoe lava flows as well as being the first step in modeling such key pahoehoe emplacement processes as. Recipe []. Generators will output power from all 6. Pahoehoe flows are emplaced by inflation—the injection of molten lava underneath a solidified crust. volcanic mudflows D. Note: Some information on the mod may be inaccurate or outdated as it is currently undergoing major. Observations of such flows on Earth (e. Lava channels are the darker area of the flow field. Electrolyzer. Fixed NotEnoughItems compatibility. Machines and cables do not explode if they are overloaded with the wrong voltage in this version. numerous small but deadly pyroclastic flows C. For other uses, see Canning Machine. 公式wikiを参考にしてこの解説は作っています. Pahoehoe lava is a term used by Hawaiian to describe lava flows with a smooth unbroken surface. Some items, like the Empty Cell, can also only be made using the Metal Former as of Minecraft 1. Block lava doesn’t exactly flow, but it is another common form. The most recent version of IC² is V2. 24,460 ARTICLES ON THIS WIKI Biogas (IndustrialCraft 2) Biogas is a fluid/gas added by the IndustrialCraft 2 mod. A lava flow field formed during the 2018 eruption of Kīlauea in Hawai’i Volcanoes National Park. The basalt lava flows are typically 1100 to 1200 degrees. 2, 47–52 wt. Indeed, Kilauea volcano has erupted continuously since 1983, its lava flows covering more than 100 square km (40 square miles) of land and adding more than 2 square km (0. 222, wrench failure has been removed, so the Electric Wrench no longer has an alternate mode to toggle. It does need a Redstone signal though. The Solar Distiller accepts up to 10 buckets of Water and will slowly transform it into Distilled Water during the day time (the same way a Solar Panel generates energy). 90. The generator accepts Biogas Cells and returns Empty Cells and generates 16,000 EU per 1000 mB. 2. When you see lava flow or walk on old lava. Once the tanks are in place, you can. At one time, it was a boiling sea of volcanoes covering the land with thick layers of. Use the Scanner to save an item on a Crystal Memory (the scanned item is destroyed) and import the scanned item in the Pattern Storage. It stores energy in Water Cells by converting them into Electrolyzed Water Cells . Cacti: Can now be burned in any furnace for 50 fuel points. IC2 (2. At temperatures above 500°C, the Steam Generator will explode, so the pressure should. faces of both abyssal and subglacial lava flows generally bear a remarkable resemblance to subaerial pahoehoe lava. Location. Redstone: Can be used as power source with electric machines, provide 500 EU per item, act just like Single-Use Battery. In pahoehoe flows volatile. dome collapse that forms volcanic breccia. I’m not very familiar with ic2. The lava is more like foam, and the. 17, 1961. Abstract Pahoehoe lava flows are common in every basaltic province, and their submarine variants, pillow lavas and sheet flows, cover the bulk of the Earth. b. The liquid lava flowing beneath a thin, still-plastic crust drags and wrinkles it into tapestry-like folds and rolls resembling twisted rope. The temperature of lava is over. Heat may be removed by several different cooling methods. Pahoehoe can be smooth and billowy. g. They also occur on the Moon, Mars, and probably Venus and Mercury as well. A valuable resource found in Sheldonite Ore, Iridium Ore [1] and in a Stronghold Corridor, Crossing or Dungeon Chest (0. The Semifluid Generator can accept various fluid fuels from buckets, Cells, Universal Fluid Cells, or from an adjacent machine with a Fluid Ejector Upgrade, and burn them to produce EU. Even though pahoehoe lavas are hotter, they travel at speeds 10 times slower than a`a. Pahoehoe Lava's freezing point is actually very high (unlike water), so for simplicity it will always eventually cool into Basalt. Take your excess plant matter and run it through your Macerator in the necessary quantity (typically 4 to 16 of each item, depending on what it is) to produce Bio Chaff . 0. Added Compressed Air Cells, produced by compressing an Empty Cell and consumed by the Scuba Helmet to refill bubbles. The Advanced Miner is a machine added by IndustrialCraft 2. It is most similar to the SI derived unit Joule. The Electrolyzer is a block that can turn Water Cells into Electrolyzed Water Cells and vice versa when placed next to an energy storage block. IC2 Experimental builds. Subsequent flows override this early emplaced a'a, which is still hot, producing a much needed (my opinion) veneer of pahoehoe. Flying is performed by holding down the jump key. It cannot be used directly for fuel, and must be processed into Biogas in the Fermenter. Conduction (contact with cold fluids. The Geothermal Generator produces EU by consuming lava, which may be supplied by buckets, Universal Fluid Cells (or consumable Lava Cells in older versions), or directly from an adjacent block such as a Pump or Fluid Distributor. Mafic (ferromagnesian, dark-coloured) lavas such as basalt characteristically form flows known by the Hawaiian names pahoehoe and aa (or a’a). However, they can only generate up to 32 EU/t, and the pellets cost a very high amount of resources. A single Geothermal Generator can store 24 units of lava internally and another stack of 64 lava cells will wait. Smooth pro time lapse of eruption of Kilauea volcano. X) in the Blast Furnace. A. Throw 8 energy upgrades in it and it will use something like 2 RF/t which means a Mekanism basic energy cube can power it for a very long time. Usage. . 1) aa, pahoehoe 2) pahoehoe, aa 3) pillow lava, pahoehoe 4) pahoehoe, pillow lava --- (1) aa, pahoehoe --- Mount St. 3, the flanks of the volcano E. As much as 99 percent of the island of Hawaii is composed of aa and pahoehoe flows. MODのアイテムにも一部対応. As the lava cools, escaping gases such as water and carbon dioxide form bubbles in the lava. The pump can be placed next to a Miner to help it suck up lava encountered while mining, or the pump can be used on its own. Flammable. Activate the Redstone. To we continue with our IC2 setup and get our Molecular Transformer up and running as well as automating out Pahoehoe lava production. Flammable. As the Induction Furnace operates, it builds up heat, which makes it smelt faster and use less EU per operation. Firstly, Cables do not act like redstone; you cannot place them diagonally to travel in a stair formation. 75 km east from the vents, which here is referred to as the “event 1 aʻa” (Fig. The Gregtech Large Heat Exchanger takes lava or IC2 hot coolant and distilled water and converts it into either steam or superheated steam depending on the amount and type of fluid supplied. Used to make Basalt. We examine the morphology and chemistry of the Vikrahraun basaltic eruption emplaced at Askja Volcano, Iceland, from Oct. Die Elektrizität der Modifikation wird in Energy Units (dt. • Distilled Water • Hotspring Water • IC2 Coolant •. The Miner will consume the pipes to dig down extracting ore it finds in its scan range. While playing it, you will feel right at home again, rediscovering most of the stuff known from IC. How to use pahoehoe in a sentence. 旧IC2と仕様は同じ模様。 ダッシュの速度が通常の3倍にまで跳ね上がる。ダッシュ中は常に電力を消費する。 ④Boots 旧IC2と仕様は同じ模様。 落下ダメージを無効化。ゴム、ナノブーツと違い電力で落下ダメージを肩代わりする。 Biomass is a fluid and a component of biofuel energy production. 2, a valley near the volcano D. To start the process, the Blast Furnace needs an input of Heat through the orange square on the side of the block. This means that they cannot work underground,. . 1. S. It takes a long time to mine, about as long as Obsidian. There can be tremendous differences in the viscosity (thickness), temperature and chemical composition of lava. Instead of consisting of only 1-2 large flow units, a pahoehoe flow consists of thousands on thousands of small flow units called toes. A liquid container used to transport and store diverse fluids, such as Water Cells, Lava Cells and Uranium Cells, that can be stacked. 3 EU/t. The Canning Machine is a machine in IndustrialCraft 2 that is used to make fluids such as Coolant, and Biomass, as well as refuelling Jetpacks. この解説は使いそうな物だけ載っています。. The Geothermal Generator outputs 20 EU/mB. Please note that the recipe has changed from 1. Trying to walk over a'a is a fool's errand. 4 and above; Tin Cable: Metal Former. Place the Replicator next to the Pattern Storage to see all patterns in the Replicator. Have you ever wondered why do you need such a hot block in the game, which is really easy to get, but that have no use? Now this mod answers the question! IC2Magma is a. The final slot under the Lathing Tool is for. When turned on it will lose energy while inflicting heavy damage. One or more Coils need to be placed inside to convert EU into Heat. v · d · e IndustrialCraft 2. The Iridium Ore is an item added by the IndustrialCraft 2 mod. Abstract Pahoehoe lava flows are common in every basaltic province, and their submarine variants, pillow lavas and sheet flows, cover the bulk of the Earth. 3. Certain machines (including energy storage blocks. For other uses, see Coil. Electric Kinetic Generator. During much of the 35 years of the Kilauea eruption, lava has quietly flowed from the Puu Oo vent to the ocean through insulating lava tubes. It is an igneous rock; in other words, it takes about 13 times longer to mine and is 1. v · d · e IndustrialCraft² Stuff. The cooling process increases the viscosity, or thickness, of the flow, and the speed of the lava slows. Item Delocalizerを入れ、F3+Hでitemid等をNEI上で確認可能になる. An Electrolyzed Water Cell can store 20,000 EU, but there will always be a loss of energy when discharging. 6 = 112%. Floor 1. There are two end-member types based on their surface flow characteristics: first product of eruption-pahoehoe lava-a'a lavaChanges. The Canning Machine is created with seven Tin Item Casings, one Electronic Circuit, and one Basic. Source. No. Inflated pahoehoe sheet flows have a distinctive horizontal upper surface, which can be several hundred meters across, and are bounded to steep monoclinal uplifts. The most efficient Superheated Steam setting is at 221 bars of pressure, as it takes 200 hU per 100 mb/t of Superheated Steam produced. Thoughts? Am I missing texture paint that is already. 12 8 = 248% times the EU. Pahoehoe Lava · Steam ·. As the flow continues the side walls also stiffen and a tube is formed. 詳しい説明は CraftTweaker Wiki MineTweaker Wiki 参照。. These vents in the ground issue lava, ash, and noxious gases at temperatures as high as 2,100°F (1,150°C) and are the closest we’ve ever gotten to the churning engine that keeps our planet running. Heat may be removed by several different cooling methods. Tile entity. Jump to navigation Jump to search. It may take a while for a channel to develop or it may happen. This page is about the Steam Turbine (Item) from IndustrialCraft 2. Some of the eruptive structures formed during volcanic activity (counterclockwise): a Plinian eruption column, Hawaiian pahoehoe flows, and a lava arc from a Strombolian eruption. Pahoehoe is the most common type of lava flow found at Craters of the Moon. In this lava, a crust of rubble forms as the lava partially cools but then tears up its own cover. It can be used to charge any tier of energy storage unit by either connecting the two blocks by placing them directly next to each other, or using one of IC2's different cable types. コマンド /mt hand でitemid入手. A. Biomass • Biogas • Distilled Water • Coolant • Hot Coolant • Pahoehoe Lava •. The Iron Furnace is 25% more fuel efficient than the vanilla Furnace, and also 20% faster. Additionally, thanks go to Risugami, Flan and the MCForge and FML team, a big mod like IC² just can't live without all these base-modifications. Tubular, branching forms are dominant (fig. The surface texture of pahoehoe flows varies widely, displaying all kinds of bizarre shapes often referred to as lava. In this study, we provide the first global compilation of pāhoehoe lava-lobe thicknesses from various. 詳しい説明は CraftTweaker Wiki MineTweaker Wiki 参照。. Light level of at least 10; Only matures if Lava is below it; Will attack the player if not wearing metal armor and drop Rotten Flesh: Egg Plant Link 6 Chicken, Egg, Edible, Feather, Flower, Addictive Ender Blossom RichardG 10 Ender, Flower, Shiny Ferru IC2 Team 6 Gray, Leaves, Metal Only matures if there is an Iron Ore or Block of Iron below. Most lava flow is mafic or basaltic. 3. ? Electrolyzers store EUs when placed adjacent to an energy storage block by converting (regular) water cells into electrolyzed water cells and vice versa. パホイホイ溶岩(ハワイ・キラウエア火山) 固化しながら縄状構造を形作るパホイホイ溶岩(ハワイ・キラウエア火山) パホイホイ溶岩(パホイホイようがん、英: pahoehoe lava )は、表面の形態で分類した溶岩流の一種。 ハワイ語に由来する地球科学の専門用語で、語源であるハワイ語の. This page was last edited on 17 April 2017, at 20:20. The threat they pose is largely dependent on how the flow moves, which is in turn determined by the properties of the lava and the landscape. The accurate modeling of this initial cooling is important for understanding the formation of the distinctive surface textures on pahoehoe lava flows as well as being the first step in modeling such key pahoehoe emplacement processes as. 8, there is a 30% chance that a wrenched machine will break, dropping a Basic Machine Casing or Advanced Machine Casing as per the one used to craft the machine. Usage []. Mar 10th 2015 #4; Not hardening at all in the nether could be pretty cool. Basaltic flows are very fluid (low viscosity) and characteristic of nonexplosive or mildly explosive eruptions. The inflated sheet flows studied ranged from 1 to 5 m in thickness, but initially propagated as thin sheets of fluid pahoehoe lava, generally 20-30 cm thick. And every time it drops, I get a massive amount of lag. Hydration Cell. 1, the suburbs of Tacoma B. More information about this can be found here. A. Eruptions that rapidly. Machine. I've seen a lot of lava bases ranging from crackle to cork. 73(6): 737–752) as most lava flows previously considered to be a′a (e. • Distilled Water • Hotspring Water • IC2 Coolant • IC2 Hot Coolant • Pahoehoe Lava •. Pahoehoe, ropy lava that forms as non-viscous lava, flows gently, forming a skin that gels and then wrinkles because of ongoing flow of the lava below the surface (Figure 4. Lava: Vanilla: 120 IC2 Hot Coolant: IndustrialCraft 2: 40 Pahoehoe Lava: IndustrialCraft 2: 80 Blazing Pyrotheum: Thermal Foundation:Pump (IndustrialCraft 2) The Pump is a machine that allows you to move or transport liquids ( Lava, Oil, and Water ). Lava based fuel sources are only 10% as efficient in an Iron Furnace as they are in a vanilla Furnace. Stage III is c. The compressed air will change to Universal Fluid Cell. 5% faster than the Iron Furnace and, as the name indicates, uses electricity. Cell of highly refined water, made from placing a Water Cell into an extractor to make a hydration cell. Type : Item Stackable : Yes (64) The Steel Ingot is an item added by the IndustrialCraft 2 mod. Construction Foam Walls are the product of Construction Foam. It will only deal 4 () points of damage if it is turned off. The Steam Turbine is an item added by IndustrialCraft 2 and is required for operating the Steam Turbine (Block) . Nuclear reactors can be a small as a single block and scale up to a 5x5x5 structure for Fluid Reactors. EU is produced through Generators. Pahoehoe might come from low-viscosity lava that flows easily into ropey strands. IC 2 introduces numerous features across a variety of areas in Minecraft, including resource processing, mining, agriculture and the player's armory itself. Compare and contrast pahoehoe and aa lava flows. 3. Lava Cells can be used in Geothermal Generators, Generators and Thermal Generators to produce EU. A single Bio Chaff will enrich 1000 mB of water into 1000 mB of Biomass. Yes (64) EMC Value. Energieeinheiten), oder kurz EU, gemessen. eruption of high-viscosity lava in a dome. As the lava flow advances it is churned and folded over itself. IC 2 introduces numerous features across a variety of areas in Minecraft, including resource processing, mining, agriculture and the player's armory itself. Component. It offers machines that can double ore output and generate power, as well as nuclear power and quantum. (Fluid) • Distilled Water • Hotspring Water • IC2 Coolant • IC2 Hot Coolant • Pahoehoe Lava •. As cells decay inside the reactor, they produce heat. Hiking on Lava: Around the Big Island and especially at the end of Chain of Craters Road, you can hike over lava. This is the situation attending the image on the right. The conversion rate is 4 kU to 1 EU. ) 1 large black circle with a smaller silver circle inside of it. Rainier below, which of the following volcanic hazards has the furthest reaching effects. Dull red colors indicates a temperature in the range of 600…700 °C. the 'a' sides are neutral facings and won't accept, generate or receive EU. The QuantumSuit Bodyarmor is a type of armor introduced in IC². industrial-craft. These channels or streams will distribute lava in multiple fingers and resemble an. Lava flows occur worldwide, and throughout history, various cultures (and geologists) have described flows based on their surface textures. 7 miles) more to travel to reach the ocean. 110 m thick,. ID. Pāhoehoe lava flows are a major component of Hawaiian eruptive activity, and an important part of basaltic volcanism worldwide. It is used to generate Heat Units (HU) from hot liquids - namely by turning Lava into Pahoehoe Lava or by turning Hot Coolant into Coolant . 8 km (1. IC2:itemRecipePart:2. One packet of 128 EU is transformed into four 32 EU packets, making. It is available in Dual and Quad rod variants, which act like 2 and 4 fuel rods next to each. ID Name. 3, the flanks of the volcano E. The Turning Table requires a Lathing Tool for each use, along with 1,000 kU. Machine. Recommended level: 14 Prep. The hot coolant will then be cooled and will become a regular coolant which can be used back. The main tube forks and reforks and the lava is conducted without much loss of heat to the. 열 교환기에서 용암을 넣고 HU를 얻으면서 만들 수 있다. -A close-up view of a portion of a tubular abyssal pillow in the. At tem- peratures of 1176 and 1169 °C, with crystal fractions of 0. ”. When volcanoes do produce lava flows. The two main types of textures created during effusive subaerial eruptions are pahoehoe and aa. Lava is the most common form of material erupted from volcanoes that form oceanic islands like the Galápagos and Hawaiian Islands. Pahoehoe and aa lava flows not only differ superficially in surface textures but also fundamentally in their emplacement mechanism (Kilburn, 1993). 7. 010 EU/t per block of adjacent water. Solution I took for this problem: two main types of lava, pāhoehoe and ‘a‘ā, differ in various properties, such as crystal and gas bubble content, as well as having slight differences in. The Nano Saber is a weapon added by IndustrialCraft 2. IndustrialCraft 2. It will electrolyze a cell when the block is more than 70% full, and discharge it when the block is less than 25% full. The two main types of basaltic volcanic rock have Hawaiian names—pahoehoe and aa. Pahoehoe (the word is Hawaiian for ropy) lava is the term for cooling textures of a highly fluid, gas-charged lava flows and was introduced as a technical term by Clarance Dutton, 1883. Place the Electrolyzer next to the EU storage block as usual. Players, mobs, and animals can walk through foam until it fully hardens, but the risk of suffocation or getting stuck in a new wall. What is Tephra/Pyroclastic material?The Macerator is a machine in IndustrialCraft 2 that is used to crush Ores into Dusts. Active pāhoehoe on the coastal plain of Kīlauea volcano, Hawai‘i. See: Crafting Guide Usage []. E2:ES - Pahoehoe lava. Pahoehoe lava flows are characterized by smooth, gently undulating, or broadly hummocky surfaces. Bright yellow is hotter (over 1000 °C) and orange cooler (800…900 °C). 32. 8. Liquids can be inserted by pumping them in or by manually inserting buckets. Unlike pahoehoe, documentation of true a′a lavas from a modern volcanological perspective is a relatively recent phenomenon in the Deccan Trap (e. Some volcanoes produce little or no lava. At 100% efficiency the LHE will return 100% of your input fluid as coolant if the input is hot coolant, or pahoehoe lava if the input fluid is lava. The Induction Furnace is most efficient when smelting two things at. Doing so will also save 50% of the energy that would have been used had every stack been smelted by itself. Uses . The threat they pose is largely dependent on how the flow moves, which is in turn determined by the properties of the lava and the landscape. IC2:itemIngot:3. 0 3. The liquid lava flowing beneath a thin, still-plastic crust drags and wrinkles it into tapestry-like folds and rolls resembling twisted. The IC2 pump is probably available a bit earlier but the Mek pump is much better and can be crafted pretty easily. The Advanced Miner adds a Whitelist/Blacklist mode. Emits Light. 9, so I don't know if this funtion is already implemented. However, there remains no complete compilation for both lava flow. Other articles where pahoehoe is discussed: lava:. Exploring Inflated Pahohoe Lava Flow Morphologies and the Effects of Cooling Using a New Simulation Approach Pahoehoe lavas are recognized as an important landform on Earth, Mars and Io. A challenge with pāhoehoe flows is that they are difficult to track and forecast, in large part owing to how they spread out on the ground. 12 o dipping stacked lava lobes with abundant cooling fractures, and occasional autobreccias. It can be used as an insta-mining tool with a relatively low EU consumption, as well as a high-power AoE block remover, or even as a weapon. Generator is re-released in IC² and outputted only 1 x 5EU-p per tick. 12. These lava tubes form as small (ankle-to-knee deep) pahoehoe. Between 1183 and 1176 °C, the two-phase suspension transitioned from a power-law fluid to a Herschel-Bulkley fluid. Needs water and Bio Chaff. This page is about the Scrap added by IndustrialCraft 2. ↑ The Enervation Dynamo accepts any item that stores RF energy and will extract. One potential observable proxy for eruption rates is flood basalt lava-flow lobe thicknesses, a topic that we tackle here quantitatively. I believe you need a place for the heat to go for it to work. Aa, on the other hand, is stony. The Empty Cell is an item added by the IndustrialCraft 2 mod. ). It is a Hawaiian word that literally means “smooth. The name of the machine is "Electric Heater" in 1. Pahoehoe lavas are recognized as an important landform on Earth, Mars and Io. Sie dreht sich um Automatisierung und Modernisierung vieler Aspekte des Spiels. The Wrench is a basic tool added by IndustrialCraft 2, which can rotate and safely dismantle IC2 machines. It is much less hot and viscous (thick) than. This is a community article originally created by ShneekyTheLost. Experimental #4. 旧IC2と違い生成されるのは液体マターで、これを複製機に投入して使用する。This page is about the Scrap added by IndustrialCraft 2. The scuba helmet, when worn, takes one from your inventory and replaces it with an Universal Fluid Cell. OreDict Name : ingotSteel. 337. Energy. Prior to IC2 v2. This mod is considered to be. Reinforced Stone is a kind of stone from IndustrialCraft 2 that is highly blast resistant. 2. The Electric Furnace is an improved and more costly version of the Iron Furnace . While more difficult to build stably, a proper MOX fluid reactor can be much more efficient than an EU reactor, with optimized designs reaching above 40x efficiency. EUs are 'produced' by generators, transmitted along cables, stored by mobile units like an RE Battery or by stationary units like a batbox, and 'consumed' by various IC2 machines. Gottesman Hall of Planet Earth. 8. This happens because of the delicate balance of gas content in the lava, the changes in lava viscosity, and the. It has been edited for tone/content/style. MODのアイテムにも一部対応. USGS photo by K. Geological Survey. Hawaiian term. Step 7: The Soothing Hum of Power []. This page is about the Pump from IndustrialCraft 2. As we mention on our Hawaii Geology page, there are two types of lava: pahoehoe and a'a flow.