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7A THE DAILY ASTORIAN • WEDNESDAY, JULY 29, 2015 NOTES FROM THE UNDERGROUND Fault helps tell history oI 3aFi¿F Northwest By BENNETT HALL Corvallis Gazette-Times CORVALLIS — On a re- cent sunny afternoon, a small knot of retired geologists and soil scientists stood beside a road cut in northwest Corvallis having an argument. The exposed hillside above them, just across Walnut Boule- vard from the Timberhill Shop- ping Center, was mostly light- brown dirt and sandstone, with chunks of dark-colored rock mixed in. Bob Lillie, a former Oregon State University geology pro- fessor, pulled several rolled-up diagrams out of a map tube and began pointing out various rock formations while the others leaned in to look. Phil Sollins, whose specialty at OSU was forest ecosystems and soils, quickly lost patience. “Let’s look at the rocks,” he sug- gested. Then he charged up the hill and started whacking away at an outcrop with the business end of a claw hammer. Ralph Nafziger, a geochem- ist who worked at the U.S. Bu- reau of Mines in Albany, and Courtney Cloyd, an ex-Forest Service geologist, were hard on his heels, and a slightly disgrun- tled Lillie followed after rolling up his maps. Soon everyone was peering at Sollins’ newly collected sample, wrangling over crystalline structure and trying to decide if they were looking at basalt or gabbro. Geology can be like that. The earth reveals itself in small glimpses, often in ways that are ambiguous, if not down- right confusing. That can be especially true in places like the Corvallis Fault, a half-mile- wide swath that runs along the boundary between the Oregon Coast Range and the Willa- mette Valley. “It’s a chaotic zone,” Lillie said. “It’s jumbled.” And that’s precisely what makes it so interesting to geolo- gists: This unassuming little rift in the earth’s crust marks the spot where titanic forces have come together to shape this part of the world, and will continue to shape it in the future. Though it’s not an active fault, it’s a Andy Cripe/The Corvallis Gazette-Times This piece of vesicular basalt was found at a road cut near Northwest Highland Drive and Lewisburg Road in Corvallis. Four retired scientists were retracing the route laid out in “Field Guide to the Geology of Corvallis and Vicinity, Oregon,” a scientific paper published in 1977 that remains the standard work on the subject. rich repository of evidence that helps to tell the tale of how the Paci¿c Northwest came to be. Earlier this month, the four retired scientists toured the fault zone, looking for clues to the region’s geological history. They were following a route laid out nearly four decades ago in “Field Guide to the Ge- ology of Corvallis and Vicini- ty, Oregon,” a scienti¿c paper written by R.D. Lawrence and three colleagues from the OSU geology department. The monograph was published in the April 1977 edition of The Ore Bin, the newsletter of the Oregon Department of Geolo- gy and Mineral Industries, and is still considered the standard work on the subject. Each stop on the tour opened a fascinating window on the past. ,FH DJH ÀRRGLQJ The trek began at Avery Park, where the meandering Marys River pools into a pop- ular swimming hole. Low summer Àows have exposed a section of riverbed composed of baseball-sized cobbles, rounded and smoothed by centuries of Àowing water and cemented together in a ma- trix of sandstone. Lillie specu- lated these rocks might be part of a formation known as the Linn gravels, eroded fragments of the Cascades that were washed down into what is now the Willamette Valley between 28,000 and 36,000 years ago. Just above this layer, the riv- erbank is made of ¿ne-grained silt. It’s an even more recent deposit, laid down in one of the most dramatic episodes in the region’s history: the Missoula Floods. Toward the end of the last ice age, a lobe of the conti- nental ice sheet creeping down from Canada would periodical- ly block the Clark Fork of the Columbia River, impounding enormous volumes of water in a virtual inland sea geologists call Glacial Lake Missoula. But ice dams are inherently unstable structures, and this one would burst every century or so, sending an estimated 50 cubic miles of water roaring to- ward the Paci¿c. Forty or more such Àoods occurred over several thousand years and shaped the North- west’s topography in dramatic ways, such as scouring out the rugged Channeled Scablands region of eastern Washington. When the wall of water hit a sharp bend in the Columbia at Portland’s West +ills, the Àow would back up into the Wil- lamette Valley as far south as Eugene, submerging all but the highest hills for days at a time. “The ice dam would break in Montana and bring in 300 feet of water up the Willamette Valley,” Lillie said. “Imagine that: 300 feet of water in the Willamette Valley.” When the Àoodwaters re- ceded, they left behind a gift: a deep layer of silt that is largely responsible for the valley’s far- famed fertility. :KHUH SODWHV FROOLGH In a strange reversal of the usual order of things, driving uphill from the river on Kings Boulevard brings the group to far older geological formations. At the road cut just north of Walnut, everybody piles out of Sollins’ van for a peek inside the Corvallis Fault. Here can be seen several of the major ingredients of the re- gion’s geology, all jumbled to- gether: the Siletz River Volca- nics, a type of basalt formed in ocean-Àoor eruptions some 55 million years ago; Tyee Sand- stone, a layer of compressed marine sediments that dates back about 41 million years (there’s also a slightly younger layer of marine sandstone in the region known as the Spen- cer Formation); and intrusions of gabbro, a volcanic rock that started out as underground magma and rose toward the surface between 30 million and 35 million years ago. How did all these different kinds of rocks get here? And why are they mixed together in unexpected ways? The answer, as Lillie explains in “Beauty from the Beast,” his just-published book on North- west geology, is plate tectonics. Here’s the short version: The earth’s crust is not a sol- id, spherical shell but rather an assemblage of plates that ¿t together like mammoth puzzle pieces, Àoating atop a semisolid layer called the mantle. Driven by heat rising up from deep within the earth, different plates move in different directions; here in the Paci¿c Northwest, a slice of oceanic crust known as the Juan de Fuca Plate is running head-on into the North American Plate. Oceanic crust tends to be heavier than continental crust, so for the most part the Juan de Fuca Plate is diving beneath the North American Plate in a pro- cess called subduction. Over the last 200 million years, this process has been responsible for creating most of what we know as Oregon, Washington and British Columbia, adding millions of acres of land to a continental margin that used to end somewhere in the vicinity of Idaho. As the oceanic crust bur- rowed deeper under the conti- nent, heat and pressure squeezed out the moisture content, send- ing superheated water upward to melt portions of the continen- tal crust, which erupted at the surface and created the volcanic Cascade Range. The most re- cent example occurred just 35 years ago, when Mount St. Hel- ens exploded in a tremendous blast that killed 57 people and lopped more than 1,000 feet off the top of the peak. And in some cases, the orig- inal geologic sequence is re- versed. The hills northwest of the Corvallis Fault, outriders of the Coast Range, are a good ex- ample of this mixed-up process. “The hills are being thrust over, the hard material is being shoved over the sediment,” Lil- lie said. TIMBERLANDS CLOSED DUE TO HIGH FIRE DANGER E ffective im m ed ia tely, the Lew is & C la rk Tim b erla n d s a re closed to a ll pu blic en try a n d w ill rem a in in effect u n til fu rther n otice. F or u p-to-d a te in form a tion plea se ca ll ou r REC REATION AL HOTLIN E 5 03 -73 8-63 5 1 Ex t. 2 TIMBERLANDS CLOSED CL ASSIF IE D M ARK ETPL A CE P lace classified ad s o n lin e at w w w .d ailyasto rian .co m o r call 503-325-3211 CL ASSIF IE D IN DEX ANNOUNCEMENTS 055 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Care Centers 035 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Lost & Found 040 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Personals 050 . . . . . . . . . . . . . . . . . . . . . . . . . . . Professional Services 061 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bankruptcy EMPLOYMENT 060 . . . . . . . . . . . . . . . . . . . . . . . Babysitters, Child Care 070 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Help Wanted 080 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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RV/Trailer Space MISCELLANEOUS 300 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Jewelry 310 . . . . . . . . . . . . . . . . . . . . Tools & Heavy Equipment 350 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appliances 360 . . . . . . . . . . . . . . . . . . . . . . . . Furniture & H H Goods 365 . . . . . . . . . . . . . . . . . . . . . . . Antiques & Collectibles 375 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Misc. For Sale 379-395 . . . . . . . . Swap Meets & Garage Sales 400 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Misc. Wanted 410 . . . . . . . . . . . . . . . . . . . . . . . . . . . Musical Instruments 430 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Arts & Crafts Join our growing team! Seeking great customer service skills and awesome attitude! Valid driverʼs license required. Proudly a drug free environment. Apply at 1605 SE Ensign, Warrenton, OR. IF YOUR HOME has become overrun with pets, take courage. Itʼs easy and economical to run a fast-acting classified ad which will attract peo- ple who are searching for a pet. K IM B ERLY cla ssified sa les representa tive for N orth Coa st com m u n ity pa pers ANIMALS/LIVESTOCK 460 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Animal Boarding 470 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fe ed-Hay-Gr ain 475-495 . . . . . . . . . . . . . . . . . . . . . . . . . Anim al-Live stock 485 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pets & Supplies The Da ily Asto ria n • Chin o o k O b server Co a st M a rketp la ce • Co a st W eeken d S ea sid e S ig n a l • Ca n n o n Bea ch Ga zette MARINE 500-525 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Marine Pla ce yo u r a d to d a y 5 03.325 .3211 • ext . 231 cla ssified s@ d a ilya sto ria n .co m AUTOMOBILE 535-595 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Automobile 35 L OST & F OUND 70 H ELP W ANTED Found: Kayak in Astoria. Call to identify. (503)791-1905 Found: Key, near Maritime Museum call to identify. (970)391-4275. AVP - Commercial Lending Lost: Charlie is missing. Last seen on Goonie street. Send him home! (503)809-9837 45 P UBLIC N OTICES •Title Clerk •Building Maintenance •Office Assistant W E GE T RESU L TS Occasionally other companies make telemarketing calls off classified ads. These companies are not affiliated with The Daily Astorian and customers are under no obligation to participate. If you would like to contact the attorney general or be put on the do not call list, here are the links to both of them Complaint form link: http://www.doj.state.or.us/ finfraud/ LET one of our friendly advisors help you word your classfied ad. Call 503-325-3211. 61 B ANKRUPTCY BANKRUPTCY $250 25 Years Experience. (503)440-0281 / (503)678-7939 Fibre Federal Credit Union, a $900m financial institution is seeking a dynamic, progressive, team oriented individual for the position of AVP- Commercial Lending. Primary responsibilities will include relationship and loan management for TLC, A division of Fibre Federal Credit Union business members in the Oregon Coast Region. Three to four years comprehensive banking or financial services experience, with strong small business and commercial lending experience required. The successful candidate will also possess at minimum, a Bachelorʼs Degree in related field or an equivalent combination of work experience and education and advanced skills with Microsoft Office Suite, automated lending platforms and financial analytical software. If you have excellent people skills and are interested in joining a financially sound, growing and learning organization, send your resume and references to: humanresources@fibrecu.com. Position – Exempt/Salary DOE Fibre Federal Credit Union is an Equal Opportunity Employer. 70 H ELP W ANTED Astoria School District 1C is seeking applicants for several Classified positions. Please visit http://astoria.tedk12.com/ hire/index.aspx to view a complete list of employment opportunities for the 2015/2016 school year ASD is an EOE Specialty Services We urge you to patronize the local professionals advertising in The Daily Astorian Specialty Services. To place your Specialty Services ad, call 325-3211. BATH AIDES Harbors Home Health & Hospice is seeking a new member for the Hospice Team. Per Diem Bath Aides for both Grays Harbor and Pacific Counties. Works as a member of a multidisciplinary care team to provide quality care to assigned patients in their place of residence. Assists patients and families in maximizing comfort and minimizing stress through the provision of personal care, simple assistance and emotional support. Current drivers license and vehicle insurance required, as well as, an acceptable driving abstract. Current CNA or NAR license/certification required. Please email resumes to melissa@myhhhh.org or stop by the Long Beach office and pick up an application. DEADLIN ES The deadline for classified ads is 1:00 p.m. the day before your ad is scheduled to run All classified ads require pre-payment TO PLACE YOUR AD: Call The Daily Astorian classifed department at: 503-325-3211 ext. 231 or 800-781-3211 ext. 231 Web: www.dailyastorian.com Email: classifieds@dailyastorian.com THE DAILY ASTORIAN P.O. Box 210 • 949 Exchange Street Astoria, Oregon 97103 www.dailyastorian.com 70 H ELP W ANTED 70 H ELP W ANTED Barber, part time experienced clipper cutter. (503)298-9166 Billʼs Tavern and Brewhouse is now hiring PT/FT line cooks, and bussers/dishwashers must be available nights and weekends. (503)436-2202 or pick up application at 188 N. Hemlock, Cannon Beach, OR. BUSY ASTORIA HOTEL HIRING FULL TIME YEAR ROUND NIGHT AUDITOR Will train the right personality. Holidays and weekends required. Holiday Inn Express Astoria 204 West Marine Drive sales@astoriahie.com Clatsop Community Action (CCA), a non-profit agency, seeks PT (25 hr.. per week) MAINTENANCE WORKER Responsible for 22 Hilltop Apt units. Minor repairs; renovates vacated apartments and prepares units for re-occupancy. Requires: HS diploma; knowledge, skills, and abilities to perform standard maintenance repairs. 2-5 years maintenance experience, valid driverʼs license/good driving record. Wage DOE. Closes 8/4/15. Obtain application at CCA 364 9th street, Astoria OR. (503)325-1400. Submit application to CCA Attn.: Director. CCA info at www.ccaservices.org Must pass background and drug screen. CCA is an EOE Bookkeeper immediate Full-time G/L Bookkeeper for an Accounting office. Knowledge of computers useful. Tax capability a strong plus. Send resume to mack@pacifier.com mail to PO Box 54, Seaside, OR 97138, or (503)738-9543 for interview Clatsop Community Action (CCA), a non-profit agency, seeks PT (20 hour per week) Regional Food Bank Warehouse Worker. Responsible to perform the tasks of the day to day warehouse operations which will include, but are not limited to assisting in the receiving and processing of product, unloading trucks, organizing products in the warehouse and maintains a clean, safe and healthy food place environment. Operates equipment, vehicles, and performs ground maintenance as needed. Requires: HS diploma; knowledge, skills, and abilities to perform standard food warehouse work. Experience preferred, but will train capable candidate. Must have valid driverʼs license and good driving record. Wage DOE. Closes 8/7/2015. Obtain application at CCA, 364 9th Street Astoria, OR (503)325- 1400. Submit application to CCA Attn.: Director. CCA info at www.ccaservies.org. Must pass background and drug screen. CCA is and EOE